James Cannot Sit Still for a 75-Minute College Class

James cannot sit still for a 75-minute college class.He gets up every 15 minutes and walks across the room to the wastebasket.He shreds his Styrofoam cup into tiny pieces,interrupts the professor to ask questions about material that has already been covered,and shouts out answers to questions without raising his hand.It is likely that James

A) is gifted and is bored in class.
B) has restless-leg syndrome.
C) has ADHD.
D) has OCD.