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: in a maths test , students were asked to find 5 / 16 of a certain number . one of the students by mistake found 5 / 6 th of that number and his answer was 200 more than the correct answer . find the number . 
Options: a ) 384 , b ) 76 , c ) 26 , d ) 28 , e ) 11

Ex Output:
a


Ex Input:
Problem: patrick purchased 60 pencils and sold them at a loss equal to the selling price of 20 pencils . the cost of 60 pencils is how many times the selling price of 60 pencils ? 
Options: a ) 0.75 , b ) 0.8 , c ) 1 , d ) 1.33 , e ) 1.75

Ex Output:
d


Ex Input:
Problem: i chose a number and divide it by 6 . then i subtracted 189 from the result and got 3 . what was the number i chose ? 
Options: a ) 1200 , b ) 1152 , c ) 1189 , d ) 1190 , e ) 100

Ex Output:

b