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: ashok and pyarelal invested money together in a business and share a capital of ashok is 1 / 9 of that of pyarelal . if the incur a loss of rs 1200 then loss of pyarelal ? 
Options: a ) 600 , b ) 700 , c ) 1080 , d ) 900 , e ) 1000

Ex Output:
c


Ex Input:
Problem: if 40 % of a certain number is 160 , then what is 30 % of that number ? 
Options: a ) 270 , b ) 380 , c ) 120 , d ) 360 , e ) 180

Ex Output:
c


Ex Input:
Problem: at what rate percent on simple interest will rs . 750 amount to rs . 900 in 10 years ? 
Options: a ) 6 % , b ) 2 % , c ) 4 % , d ) 5 % , e ) 3 %

Ex Output:

b