2. Jerry is studying three nights per week and his grade point average is 3.1. He wants ahigher GPA and decides to study an extra night each week. His GPA now rises to 3.5.Had Jerry not decided to study an extra night, he would have spent this night with hisfriends. What is Jerrys marginal benefit from studying for one additional night a week?What is his marginal cost of increasing the study time by one night per week? Why doesJerry decide to study an extra night?