Task: Question Answering
Input (English): Problem: six bells commence tolling together and toll at intervals of 2 , 4,6 , 8,10 and 12 seconds respectively . in 30 m 9 nutes , how many times do they toll together ? 
Options: a ) 4 , b ) 10 , c ) 15 , d ) 16 , e ) 17
Output (English): d