Task: Question Answering
Input (English): Problem: in traveling from a dormitory to a certain city , a student went 1 / 2 of the way by foot , 3 / 5 of the way by bus , and the remaining 4 kilometers by car . what is the distance , in kilometers , from the dormitory to the city ? 
Options: a ) 20 , b ) 15 , c ) 40 , d ) 10 , e ) 12
Output (English): a