Task: Text Completion
Input (English): A man then begins to ride his skateboard from the top of the roof down an inclined road. the man <sep> (A) then gets down and speeds away on his skateboard while stopping to turn to pick something up in the air. (B) demonstrates how to single file along the road. (C) then comes up on all fours and is then seen riding on a skateboard again. (D) then begins moving and skateboarding throughout the neighborhood and interacting with the people.
Output (English): D