Willie Is on the Bus with His Classmates

Willie is on the bus with his classmates.Who is most likely to be diagnosed with psychopathology based on the criteria that his or her behavior impairs good daily functioning?

A) Jemima,who plays loud music on her cell phone even though it is against the rules
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