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'.

Ex Input:
Problem: what is the smallest no . which must be added to 532869 so as to obtain a sum which is divisible by 9 ? 
Options: a ) 9 , b ) 2 , c ) 1 , d ) 3 , e ) 6

Ex Output:
d


Ex Input:
Problem: when a number is divided by 6 & then multiply by 12 the answer is 8 what is the no . ? 
Options: a ) 4.5 , b ) 5 , c ) 5.5 , d ) 5.8 , e ) 4

Ex Output:
e


Ex Input:
Problem: if sales tax is reduced from 5 % to 4 % , then what difference it will make if you purchase an item of rs . 1000 
Options: a ) 10 , b ) 20 , c ) 30 , d ) 40 , e ) 50

Ex Output:

a