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: ravi purchased a refrigerator and a mobile phone for rs . 15000 and rs . 8000 respectively . he sold the refrigerator at a loss of 5 percent and the mobile phone at a profit of 10 percent . overall he make a . 
Options: a ) 50 , b ) 288 , c ) 27 , d ) 200 , e ) 881

Ex Output:
a


Ex Input:
Problem: john makes $ 65 a week from his job . he earns a raise andnow makes $ 70 a week . what is the % increase ? 
Options: a ) 7.69 % , b ) 16.66 % , c ) 17.8 % , d ) 19 % , e ) 21 %

Ex Output:
a


Ex Input:
Problem: the present worth of rs . 1404 due in two equal half - yearly installments at 8 % per annum simple interest is : 
Options: a ) rs . 1325 , b ) rs . 1300 , c ) rs . 1350 , d ) rs . 1500 , e ) rs . 1600

Ex Output:

c