In this task, you need to answer the given multiple-choice question on the gain. Gain is the value by which to multiply the input. Classify your answers into 'a', 'b', 'c', 'd', and 'e'.

Ex Input:
Problem: running at the same rate , 8 identical machines can produce 560 paperclips a minute . at this rate , how many paperclips could 18 machines produce in 6 minutes ? 
Options: a ) 1344 , b ) 3360 , c ) 7560 , d ) 50400 , e ) 67200

Ex Output:
c


Ex Input:
Problem: the sale price sarees listed for rs . 495 after successive discount is 15 % and 10 % is ? 
Options: a ) 288 , b ) 378 , c ) 342 , d ) 662 , e ) 262

Ex Output:
b


Ex Input:
Problem: a baseball card decreased in value 50 % in its first year and 10 % in its second year . what was the total percent decrease of the card ' s value over the two years ? 
Options: a ) 28 % , b ) 55 % , c ) 32 % , d ) 36 % , e ) 72 %

Ex Output:

b