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: the present worth of rs . 2310 due years hence , the rate of interest being 15 % per annum , is :
Options: a ) rs . 1440 , b ) rs . 1750 , c ) rs . 1680 , d ) rs . 1840 , e ) none of these

Ex Output:
c

Ex Input:
Problem: in a company , 54 percent of the employees are men . if 60 percent of the employees are unionized and 70 percent of these are men , what percent of the non - union employees are women ?
Options: a ) 55 % , b ) 60 % , c ) 65 % , d ) 70 % , e ) 75 %

Ex Output:
d

Ex Input:
Problem: running at the same constant rate , 6 identical machines can produce a total of 270 bottles per minute . at this rate , how many bottles could 14 such machines produce in 4 minutes ?
Options: a ) 2520 , b ) 1800 , c ) 2700 , d ) 10800 , e ) none of these

Ex Output:
a