Task: Question Answering
Input (English): Problem: 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 ? 
Options: a ) 400 , b ) 440 , c ) 480 , d ) 520 , e ) 560
Output (English): c