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: the length and breadth of a rectangle is increased by 10 % and 25 % respectively . what is the increase in the area ?. a . 27.5 % 
Options: ['a ) 37.2 %', 'b ) 37.5 %', 'c ) 30.2 %', 'd ) 37.7 %', 'e ) 33.2 %']

Output: b


Input: Consider Input: Problem: what is the measure of the angle w made by the diagonals of the any adjacent sides of a cube . 
Options: a ) 30 , b ) 45 , c ) 60 , d ) 75 , e ) 90

Output: c


Input: Consider Input: Problem: what will be the percentage increase in the area of the cube ' s surface if each of the cube ' s edges grows by 50 % ? 
Options: a ) 125 % , b ) 150 % , c ) 100 % , d ) 90 % , e ) 85 %


Output: a