Expanding the quiz - better solutions?

// 1. Create a multidimensional array to hold quiz questions and answers

let quiz = [
  ['Who is the POTUS?', 'Joe Biden'],
  ['What does "IPA" stand for?', 'Indian Pale Ale'],
  ['Which planet is closest to the sun?', 'Mercury'],
  ['Whose face was said to have launched 1,000 ships?', 'Helen of Troy']
];


// 2. Store the number of correct answers
let correctAnswers = 0;

// 2b. Store which questions were correct/incorrect
let correct = [];
let incorrect = [];
let notAnswered = 0;

/* 
  3. Use a loop to cycle through each question
      - Present each question to the user
      - Compare the user's response to answer in the array
      - If the response matches the answer, the number of correctly
        answered questions increments by 1
*/

for ( let i = 0; i < quiz.length; i++ ) {
  let question = quiz[i][0];
  let answer = quiz[i][1]
  let response = prompt(question);

  if (!response) {
    notAnswered++;
  } else if(response === answer) {
    correctAnswers++;
    correct.push(question);
  } else {
      incorrect.push(question);
  }
}

function createListItems(arr) {
  let items = '';
  for ( let i = 0; i < arr.length; i++ ){
    items += `<li>${arr[i]}</li>`;
  }
  return items;
}

console.log(correct.length);
console.log(incorrect.length);
console.log(quiz.length);


// 4. Display feedback based on the number of correct answers
if (notAnswered === 0 && correct.length === quiz.length) {
    feedback = `<h1>Awesome! You got everything right!</h1>`
} else if (notAnswered === 0 && incorrect.length === quiz.length) {
    feedback = `<h2>Sorry. You got all the questions wrong.</h2`
} else if (notAnswered === 0 && correct.length > 0 && correct.length < quiz.length) {
    feedback = `
      <h1>You got ${correctAnswers} question(s) correct.</h1>
      <h2>These are the questions you answered right:</h2>
      <ol>${createListItems(correct)}</ol>
      <h2>These are the questions you answered wrong:</h2>
      <ol>${createListItems(incorrect)}</ol>
`;
} else {
    feedback = `<h2>Sorry. You must provide and answer to all the questions.</h2>`
}

document.querySelector('main').innerHTML = feedback;