getting quiz.js:43 Uncaught SyntaxError: Unexpected end of input

var questions = [
  ['How many states are in the United States?', 50],
  ['How many continents are there?', 7],
  ['How many legs does an insect have?', 6]
];
var correctAnswers = 0;
var question;
var answer;
var response;
var html;
var correct=[];
var wrong=[];


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

function buildList (arr){
  var listHTML = '<ol>';
  for(var i=0; i<arr.length; i+=1){
   listHTML+='<li>' +arr[i]+'</li>';
  }
  listHTML+='</o>';
  return listHTML;
}

for (var i = 0; i < questions.length; i += 1) {
  question = questions[i][0];
  answer = questions[i][1];
  response = parseInt(prompt(question));
  if (response === answer) {
    correctAnswers += 1;
    correct.push(question);
  } 
  else{
    wrong.push(question);
  } //You forgot your closing bracket
}

  html =  "You got"+correctAnswers+" questions right.";
  html += "<h2> You got these questions correct:</h2>";
  html += buildList(correct);
  html += "<h2> You got these questions incorrect: </h2>";
  html += buildList(wrong);
  print(html);