Task: Question Answering
Input (English): Problem: the ratio of the volumes of two cubes is 729 : 1331 . what is the ratio of their total surface areas ? 
Options: a ) 81 : 121 , b ) 81 : 126 , c ) 81 : 189 , d ) 81 : 176 , e ) 81 : 117
Output (English): a