Are the questions on the AMC 10 multiple choice or short answer?

The American Mathematics Competition 10 (AMC 10) is made up of 25 multiple choice questions (A through E). All questions are worth 6 points if correct, 0 if incorrect, and from 1.5 to 2.5 points if blank depending on the year. Recently the contest has moved toward 1.5 points for a blank answer.