Task: Question Answering
Input (English): Problem: the ratio of the volumes of two cubes is 27 : 64 . what is the ratio of their total surface areas ? 
Options: ['a ) 18 : 21', 'b ) 81 : 13', 'c ) 8 : 15', 'd ) 16 : 21', 'e ) 1 : 13']
Output (English): d