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

Input: Consider Input: Problem: if z is not equal to zero , and z = 6 zs 9 s 2 z = 6 zs 9 s 2 , then z equals :
Options: a ) s , b ) 3 s , c ) 4 s , d ) - 3 s , e ) - 4 s

Output: b

Input: Consider Input: Problem: a room is 6 meters 24 centimeters in length and 4 meters 32 centimeters in width . find the least number of square tiles of equal size required to cover the entire floor of the room .
Options: a ) 107 , b ) 117 , c ) 127 , d ) 137 , e ) 147

Output: b

Input: Consider Input: Problem: find the greatest number which leaves the same remainder when it divides 25 , 50 and 120 .
Options: a ) 18 , b ) 5 , c ) 12 , d ) 16 , e ) none of these
Output: b