【React】質問に答えると回答が変更できない。

ReactでMaterial-UI を使用して、Web フォームを作成しています。

質問の画面で、質問に１度答えると回答を変更できないので、変更できるように実装したい。
どのように実装したら良いかわからない状況で、詰まっています。アドバイスをお願いします。

Questionnaire.js

import React from "react";
import Typography from "@mui/material/Typography";
import Radio from "@mui/material/Radio";
import RadioGroup from "@mui/material/RadioGroup";
import FormControlLabel from "@mui/material/FormControlLabel";
import FormControl from "@mui/material/FormControl";
import FormLabel from "@mui/material/FormLabel";

export const QUESTIONS = [
  "現在、生命保険に加入されていますか？",
  "現在、入院中ですか。また、3ヶ月以内に医師の診察・検査の結果、入院・手術を勧められたことがありますか？",
  "過去、5年以内に病気やケガで手術を受けた事または継続して７日以上の入院をしたことはありますか？",
];

const Questionnaire = ({ answers, setAnswers }) => {
  const handleAnswer = (answeredIndex, answer) => {
    setAnswers(answers.map((e, i) => (i === answeredIndex ? answer : e)));
  };
  return (
    <div>
      <FormControl component="fieldset">
        {answers
          .filter((_, i) => i === 0 || answers[i - 1])
          .map((answer, i) => (
            <React.Fragment key={i}>
              <FormLabel component="legend">{QUESTIONS[i]}</FormLabel>
              {answer ? (
                <Typography>{answer === "yes" ? "はい" : "いいえ"}</Typography>
              ) : (
                <RadioGroup
                  row
                  aria-label="gender"
                  name="row-radio-buttons-group"
                  onChange={(_evt, value) => {
                    handleAnswer(i, value);
                  }}
                >
                  <FormControlLabel value="yes" control={<Radio />} label="はい" />
                  <FormControlLabel value="no" control={<Radio />} label="いいえ" />
                </RadioGroup>
              )}
            </React.Fragment>
          ))}
      </FormControl>
    </div>
  );
};

export default Questionnaire;

Content.js

import React from "react";
import { Grid } from "@mui/material";
import Stepper from "@mui/material/Stepper";
import Step from "@mui/material/Step";
import StepLabel from "@mui/material/StepLabel";
import Button from "@mui/material/Button";
import Typography from "@mui/material/Typography";
import Basic from "./Basic";
import Questionnaire, { QUESTIONS } from "./Questionnaire";
import Optional from "./Optional";

function getSteps() {
  return ["お客様の情報を入力して下さい", "以下にお答え下さい", "ご相談下さい", "以下の内容をご確認下さい"];
}

const StepContent = ({ stepIndex, basicProps, questionnaireProps, optionalProps }) => {
  switch (stepIndex) {
    case 0:
      return  <Basic {...basicProps} />
    case 1:
      return <Questionnaire {...questionnaireProps} />;
    case 2:
      return <Optional {...optionalProps}/>;
    case 3:
      return (
        <div style={{ textAlign: "center" }}>
          <Basic {...basicProps} />
          <Questionnaire {...questionnaireProps} />
          <Optional {...optionalProps} />
        </div>
      );
    default:
      return "Unknown stepIndex";
  }
};
function Content() {
  const [activeStep, setActiveStep] = React.useState(0);
  const [basicProfile, setBasicProfile] = React.useState({ gender: null, year: null, month: null, day: null });
  const [answers, setAnswers] = React.useState(Array(QUESTIONS.length).fill(null));
  const [ optionalRequest, setOptionalRequest] = React.useState({request: null});
  const steps = getSteps();
  const handleNext = () => {
    setActiveStep((prevActiveStep) => prevActiveStep + 1);
  };
  const handleBack = () => {
    setActiveStep((prevActiveStep) => prevActiveStep - 1);
  };
  const handleReset = () => {
    setActiveStep(0);
  };
  const buttonDisabled = activeStep === 1 && answers.some((a) => !a);
  return (
    <Grid container>
      <Grid sm={2} />
      <Grid lg={8} sm={8} spacing={10}>
        <Stepper activeStep={activeStep} alternativeLabel>
          {steps.map((label) => (
            <Step key={label}>
              <StepLabel>{label}</StepLabel>
            </Step>
          ))}
        </Stepper>
        {activeStep === steps.length ? (
          <div style={{ textAlign: "center" }}>
            <Typography>全ステップの表示を完了</Typography>
            <Button onClick={handleReset}>リセット</Button>
          </div>
        ) : (
          <div>
            <Typography>
              <StepContent 
                stepIndex={activeStep} 
                questionnaireProps={{ answers, setAnswers }} 
                basicProps={{ basicProfile, setBasicProfile }}
                optionalProps={{ optionalRequest, setOptionalRequest }}
                />
            </Typography>
            <Button disabled={activeStep === 0} onClick={handleBack}>
              戻る
            </Button>
            <Button variant="contained" color="primary" onClick={handleNext} disabled={buttonDisabled}>
              {activeStep === steps.length - 1 ? "送信" : "次へ"}
            </Button>
          </div>
        )}
      </Grid>
    </Grid>
  );
}
export default Content;