Willie Rides the Bus to School with Many Neighbors

Willie rides the bus to school with many neighbors.Which person is most likely to be diagnosed with psychopathology based on the criteria that his or her behavior impairs good daily function?

A) Jemima, who carves swear words into the bus seats with her pocket knife
B) Marvin, who gets sad if he cannot sit behind the bus driver
C) Elizabeth, who must walk up and down the bus steps 10 times before getting on
D) Bruce, who prefers to look out the window instead of talking to his seatmate