Task: Question Answering
Input (English): Problem: the ratio of the volumes of two cubes is 216 : 343 . what is the ratio of their total surface areas ? 
Options: a ) 81 : 12 , b ) 31 : 36 , c ) 81 : 22 , d ) 8 : 19 , e ) 1 : 11
Output (English): b