Task: Question Answering
Input (English): Problem: a man , a woman and a boy can complete a job in 3,4 and 12 days respectively . how many boys must assist 1 man and 1 woman to complete the job in ¼ of a day ? 
Options: a ) 1 day , b ) 4 days , c ) 19 days , d ) 41 days , e ) 52 days
Output (English): d