Task: Text Completion
Input (English): People run motocross on a bumpy road in the wood. A person climbs a bump with a motorcycle. also people <sep> (A) climb a rough platform high up. (B) stand in a log where a man holds a light throwing it near steep and narrow hill as a guide. (C) rides motorcycles on an unpaved flat surface. (D) riding horses through road.
Output (English): C