Please help, it just won't track anything, correct answer or wrong answer!

So I was doing this (https://teamtreehouse.com/library/build-a-quiz-challenge-part-1) challenge. Drag the video to the 00;26 if you want to know what I am trying to build. Long story short, I was suppose to build a two-dimensional array, that contains three questions and their answers. And I should prompt those questions, collect inputs, and evaluate if the inputs are correct. I should also keep track of the number of correct and wrong answers, and print them to the webpage. And this is what I have done(js/quiz.js): https://teamtreehouse.com/workspaces/29326122. It runs, and when I enter the console, it shows nothing, not mistake or anything. But it just won't track anything, no matter how you answer those question, the page will tell you you get 0 correct and 0 wrong answer!. Please help me, I really don't know what I did wrong.