Code critique please

function print(message) {
  document.write(message);
}

var questionAnswer = [
  ['1?', '1'],
  ['2?', '2'],
  ['3?', '3']
];

var goodAnswer = [];
var badAnswer = [];

var answer;

for (i = 0; i < questionAnswer.length; i += 1) {
  answer = prompt( questionAnswer[i][0] );
  if ( answer === questionAnswer[i][1] ) {
    goodAnswer.push( questionAnswer[i][0] );
  } else {
    badAnswer.push( questionAnswer[i][0] );
  }
}

print("<h1>You got " + goodAnswer.length + " correct.</h1>");

print("<h2>You answered the following questions correctly:</h2></p>" + goodAnswer.join('<br>') + "</p>");

print("<h2>The following questions were answered incorrectly:</h2></p>" + badAnswer.join('<br>') + "</p>");