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 diameter of a cylindrical tin is 10 cm and height is 5 cm . find the volume of the cylinder ? 
Options: a ) 125 , b ) 155 , c ) 130 , d ) 120 , e ) 100

Output: a


Input: Consider Input: Problem: the perimeter of one face of a cube is 20 cm . its volume will be : 
Options: a ) 125 cm 3 , b ) 400 cm 3 , c ) 250 cm 3 , d ) 625 cm 3 , e ) none of these

Output: a


Input: Consider Input: Problem: if y is the smallest positive integer such that 8820 multiplied by y is the square of an integer , then y must be 
Options: a ) 2 , b ) 5 , c ) 6 , d ) 7 , e ) 14


Output: b