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: x + ( 1 / x ) = 1.5 find x ^ 2 + ( 1 / x ^ 2 )
Options: a ) 2.25 , b ) 3.25 , c ) 4.25 , d ) 5.25 , e ) 0.25

Ex Output:
e

Ex Input:
Problem: i chose a number and divide it by 8 . then i subtracted 100 from the result and got 6 . what was the number i chose ?
Options: a ) 600 , b ) 700 , c ) 800 , d ) 900 , e ) 848

Ex Output:
e

Ex Input:
Problem: for all even integers n , h ( n ) is defined to be the sum of the even integers between 4 and n , inclusive . what is the value of h ( 18 ) / h ( 10 ) ?
Options: a ) 3 , b ) 1.8 , c ) 6 , d ) 18 , e ) 60

Ex Output:
a