Task: Question Answering
Input (English): Question: A man traveled a total distance of 1200 km. He traveled one-third of the whole trip by plane and the distance traveled by train is two-thirds of the distance traveled by bus. If he traveled by train, plane and bus, how many kilometers did he travel by bus?

 Option A: 400

 Option B: 440

 Option C: 480

 Option D: 520

 Option E: 560
Output (English): Option C