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: the measure of the side of a square is quadrupled . if x represents the perimeter of the original square , what is the value of the new perimeter ? 
Options: ['a ) 3 x', 'b ) 4 x', 'c ) 9 x', 'd ) 12 x', 'e ) 27 x']

Ex Output:
b


Ex Input:
Problem: the diameter of a cylindrical tin is 14 cm and height is 2 cm . find the volume of the cylinder ? 
Options: a ) 33 , b ) 45 , c ) 66 , d ) 77 , e ) 98

Ex Output:
e


Ex 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 20 % ? 
Options: a ) 33 % , b ) 44 % , c ) 55 % , d ) 56 % , e ) 73 %

Ex Output:

b