Your Economics Professor Has Announced the Following Grading Policy: for Each

Multiple Choice

Your economics professor has announced the following grading policy: For each exam,the highest score in the class will be entered as a 100%;all other scores will be entered as the percent of that top score.For example,if the highest test score is 50 out of 100,it will be counted as a perfect paper,and exams with a score of 40 out of 100 will be entered as an 80%.The final grade for the course will be determined using these adjusted percentages,with 90% and above an A,80% and above a B,70% and above a C,and below 70%,not passing.
Refer to the information given above.You would expect that,as the semester progressed,students in this class who cared primarily about good grades would:

A) study less and less to maintain low standards and still earn high grades.
B) forget about the grading scheme,and learn to study for the sake of learning.
C) engage in a positional arms race,studying more and more.
D) maintain a stable agreement to not study for exams.