I'm building a quiz, and I want my "correct" box to show up only when all answers are chosen, and my "incorrect" box to show up when any other answer or combination of answers are chosen.

I added an input box to my project for users to enter their ID #, however there is no button or option to "submit" or "enter" once they type in their ID in the box. 
How can I gather the info that is submitted through the input box?