Task: Question Answering
Input (English): Problem: if the length of the sides of two cubes are in the ratio 2 : 1 , what is the ratio of their total surface area ? 
Options: a ) 2 : 1 , b ) 3 : 1 , c ) 4 : 1 , d ) 6 : 1 , e ) 8 : 1
Output (English): c