a relative ranking system is used when group of answer choices a student must take all quizzes to receive a c, a student must take all quizzes and write a paper to receive a b, and a student must take all quizzes, write a paper and do a presentation to receive an a. students receive weighted grades during a semester, like: 20 of 25 points on a quiz worth 5% of the grade, and 10 of 15 on a quiz worth 3% of the grade. a college implements a system where 10% of the class will receive a, 20% will receive b, 70% will receive c, 20% will receive d and 10% will receive f. students receive an a if they got 93% of the total points in a semester.