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

Ex Input:
Problem: a rectangular lawn of length 200 m by 120 m has two roads running along its center , one along the length and the other along the width . if the width of the roads is 5 m what is the area y covered by the two roads ? 
Options: a ) 400 , b ) 1550 , c ) 1575 , d ) 1600 , e ) 1625

Ex Output:
c


Ex Input:
Problem: the number 70 can be written as the sum of the squares of 3 different positive integers . what is the sum of these 3 integers ? 
Options: a ) 17 , b ) 16 , c ) 15 , d ) 14 , e ) 13

Ex Output:
d


Ex Input:
Problem: what is the area of an equilateral triangle whose one side length is 40 ? 
Options: a ) 100 √ 3 , b ) 200 √ 3 , c ) 300 √ 3 , d ) 350 √ 3 , e ) 400 √ 3

Ex Output:

e