Task: Text Completion
Input (English): A man riding a surfboard is attached to a long rope as he goes up and off of several ramps. The men show off painted mustaches on their fingers, then go back to performing stunts on the surfboards. they <sep> (A) fly into the air, spinning and landing. (B) finally end the long video in a complete professional low while people are in the stands cheering them on. (C) back straddle the grips of the board like a pretzel as they go down the ramps. (D) continue buffing the surfaces of the cars with a green disc.
Output (English): A