In this task, you need to answer the given multiple-choice question on geometry. Classify your answers into 'a', 'b', 'c', 'd', and 'e'.

Input: Consider Input: Problem: find the surface area of a 10 cm x 4 cm x 3 cm brick 
Options: a ) 84 , b ) 124 , c ) 164 , d ) 180 , e ) 120

Output: c


Input: Consider Input: Problem: if the sides of a cube are in the ratio 4 : 3 . what is the ratio of their diagonals ? 
Options: a ) 4 : 3 , b ) 4 : 8 , c ) 4 : 1 , d ) 4 : 2 , e ) 4 : 7

Output: a


Input: Consider Input: Problem: the area of a rectangular field is equal to 300 square meters . its perimeter is equal to 70 meters . find the length of this rectangle . 
Options: a ) 40 , b ) 70 , c ) 20 , d ) 80 , e ) 60


Output: c