Uncertain whether Health Economics will be an easy course or a hard course. You think it is equally likely that the course is easy or hard, and you think that if the course is easy, you will get a final grade of A, and if the course is hard you will get a final grade of C. Before the final exam, the benevolent instructor, who does not like grading finals, offers to give you a final grade of B- (B minus) with certainty in lieu of writing the final. Should you take the B-or should you write the final? Explain your reasoning.