If a Student Enrolls in an Additional Course at the University

Multiple Choice

If a student enrolls in an additional course at the university, an economist would conclude that:

A) ​the total benefit that the student expects to receive as a result of completing her college degree exceeds the total cost of her college education.
B) ​the student is not following the rule of rational choice.
C) ​the student must not be involved in extracurricular campus activities.
D) ​the expected marginal benefit of an additional course must exceed the expected marginal cost of the course.