Task: Question Answering
Input (English): Problem: the edge of a cube is 5 a cm . find its surface ? 
Options: a ) 150 a 2 cm 2 , b ) 170 a 2 cm 2 , c ) 125 a 2 cm 2 , d ) 175 a 2 cm 2 , e ) 120 a 2 cm 2
Output (English): a