Junior is a senior at State University. Dad, Junior's father, is concerned about Junior's study habits, given that Junior spends most of his evenings...

Junior is a senior at State University. Dad, Junior's father, is concerned about Junior's study habits, given that Junior spends most of his evenings at the campus pub instead of the library. Dad promises Junior that he will send him on an expense-paid trip to Europe after his graduation if Junior spends at least five evenings a week studying in the campus library for the remainder of his senior year. After returning home from his graduation, Junior asks Dad about the European trip. Dad replies, "Your education was your reward. I do not owe you a trip to Europe." DadA) is correct, Junior has already gained a benefit of the bargain.B) is correct, Junior did not give anything of legal value.C) is not correct, Dad owes Junior a trip to Europe because Junior's acts are consideration.D) is not correct, but only if Junior's acts are adequate consideration for such an expensive trip.