Some exams come in the form of multiple choice and a student requires special preparation for such an exam. These types of exams ask a student to choose a correct answer from a set of options, mostly four, out of which three are wrong. Even the most prepared student can make silly mistakes on this exam by falling prey to distractors that look very similar to the correct answer.
As a student, I would always be excited when we had a multiple choice test because I assumed it was easier than other exams. My reasons were that the correct answer was guaranteed to be among the four, and I could pass easily just by guessing the answer.