Daniel is a senior at state university. brian, daniel's father, is concerned about daniel's study habits, given that daniel spends most of his evenings at the campus pub instead of the library. brian promises daniel that he will send him on an expense-paid trip to europe after his graduation if daniel 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, daniel asks brian about the european trip. brian replies, "your education was your reward. i don't owe you a trip to europe." brian is: