Multiple-choice questions have a special grading rule determined by your instructor. assume that your instructor has decided to grade these questions in the following way:
if you submit an incorrect answer to a multiple-choice question with n options, you will lose 1/(n−1) of the credit for that question. just like the similar multiple-choice penalty on most standardized tests, this rule is necessary to prevent random guessing.

if a multiple-choice question has five answer choices and you submit one wrong answer before getting the question correct, how much credit will you lose for that part of the question?