Which one of the following teachers is using a norm-referenced grading system? Group of answer choices In Mr. Davenport's class, students who have achieved all of his instructional objectives get a grade of "Pass"; students who have not achieved all objectives get a grade of "In progress." In Ms. Chan's class, students who get an average of at least 90% correct on tests and assignments get an A. Those with an average of 80% to 89% get a B, those between 70% and 79% get a C, and so on. In Mr. Buchanan's class, the ten students with the highest accumulation of points receive an A, the next ten receive a B, and so on. In Ms. Albrecht's class, students who have completely mastered the material and can also apply it get an A. Students who have thoroughly mastered the material but cannot apply it get a B. Students who have mastered only the basics of the topic get a C. Students who have learned little about the topic get a D or F