Task: Text Completion
Input (English): Two young boys are standing in the room with two tennis rackets in their hand surrounded by three white walls and a glass wall behind them. one of the boys <sep> (A) then grabs the racket that is in his left hand and begins hitting the tennis ball against the wall with the racket. (B) punches the other to the ground and smashes his tennis racket against the wall, winces, and yells at his opponent. (C) then goes behind the wall to grab the racket that the other boy has in his hand and begins hitting a ball against the wall. (D) then takes the ball and bounces it against the wall and the two begin taking turns hitting the ball back and forth.
Output (English): D