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: 2.505 / 10.02 = 
Options: a ) 0.35 , b ) 0.3505 , c ) 0.25 , d ) 0.351 , e ) 0.3527

Ex Output:
c


Ex Input:
Problem: what number times ( 1 ⁄ 5 ) ^ 2 will give the value of 5 ^ 3 ? 
Options: a ) 5 , b ) 25 , c ) 125 , d ) 625 , e ) 3125

Ex Output:
e


Ex Input:
Problem: a mixture of 125 gallons of wine and water contains 20 % water . how much water must be added to the mixture in order to increase the percentage of water to 25 % of the new mixture ? 
Options: a ) 10 glas , b ) 8.5 gals , c ) 8 gals , d ) 6.66 gals , e ) 8.33 gals

Ex Output:

e