radio button reset

src/Home.js

@@ -23,7 +23,7 @@ function Home() {
         else if (!password) {
             alert('비밀번호를 입력하세요')
         }
-        else if (password !== '0319') {
+        else if (password !== '0000') {
             alert('유효한 비밀번호를 입력하세요')
         }
         else {

src/Quiz.js

 import React, { useState } from 'react'
 import { Link } from 'react-router-dom';
 import Timer from 'react-compound-timer'; // 타이머쓰기위해 import
-import logo from './img_question.png'
-
-
+import logo from './img/img_question.png'
 
 const QnA = [
     { Q: "6 X 4 = ?", Choose: [6, 12, 18, 24], A: "4", N: 1 },
@@ -22,22 +20,21 @@ function Quiz() {
         page: 0,
     })
     const [selected, setSelected] = useState("")  //선택한 답을 보여줄 것들
-    // const [checked, setChecked] = useState(false)
 
     function handleQuestion() {
         setQuestion({ ...QnA[question.i + 1], i: question.i + 1, page: question.page + 1 })
-        // setChecked(false)
+        setSelected("")
     }
 
     let handleChange = (ev) => {
         // ev.preventDefault()  //새로고침 안되도록
         setSelected(ev.target.value)  //selected값 변경
         Answers[question.N - 1] = Number(ev.target.id) + 1
-
         localStorage.setItem('Answers', JSON.stringify(Answers))
     }
+
     return (
-        <div className="container-fluid position-absolute">
+        <div className="container-fluid">
             <div className="text-center h2 font-weight-bold bg-warning py-2">미적분학 퀴즈</div>
             <div className="row justify-content-md-center" >
                 <div className="col text-right">
@@ -53,7 +50,7 @@ function Quiz() {
                         <form>
                             {question.Choose.map((a, index) =>
                                 <div key={index}>
-                                    <input type="radio" name='answer' id={index} value={a} onClick={handleChange} />
+                                    <input type="radio" name='answer' id={index} value={a} onChange={handleChange} checked={parseInt(selected) === a} />
                                     <label className="font-weight-bold" htmlFor={a}>{a}</label>
                                 </div>
                             )}