Task: Question Answering
Input (English): Problem: 4 mat - weaves can weaves 4 mats in 4 days . at the same rate , how many mats would be woven by 8 mat - weaves in 8 days ? 
Options: a ) 4 , b ) 8 , c ) 12 , d ) 16 , e ) 17
Output (English): d