Task: Question Answering
Input (English): Problem: 16 men take 21 days of 8 hours each to do a piece of work . how many days of 6 hours each would 21 women take to do the same . if 3 women do as much work as 2 men ? 
Options: a ) 32 , b ) 87 , c ) 30 , d ) 99 , e ) 77
Output (English): a