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: the total price of a basic computer and printer are $ 2,500 . if the same printer had been purchased with an enhanced computer whose price was $ 500 more than the price of the basic computer , then the price of the printer would have been 2 / 5 of that total . what was the price of the basic computer ?
Options: a ) 1300 , b ) 1600 , c ) 1750 , d ) 1900 , e ) 2000

Ex Output:
a

Ex Input:
Problem: the average of 5 quantities is 9 . the average of 3 of them is 4 . what is the average of remaining 2 numbers ?
Options: a ) 16.5 , b ) 10 , c ) 8 , d ) 9.5 , e ) none of these

Ex Output:
a

Ex Input:
Problem: last week john spent 10 percent of his wages on recreation . this week , his wages are 10 percent less than last week ' s wages and he spent 40 percent of his wages on recreation . the amount he spends on recreation this week is what percent of the amount he spent on recreation last week
Options: a ) 180 % , b ) 360 % , c ) 200 % , d ) 220 % , e ) 250 %

Ex Output:
b