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: a retailer bought a machine at a wholesale price of $ 108 and later on sold it after a 10 % discount of the retail price . if the retailer made a profit equivalent to 20 % of the whole price , what is the retail price of the machine ? 
Options: a ) 81 , b ) 100 , c ) 120 , d ) 135 , e ) 144

Ex Output:
e


Ex Input:
Problem: julie put half of her savings in a savings account that pays an annual simple interest and half in a savings account that pays an annual compound interest . after two years she earned $ 120 and $ 122 from the simple interest account and the compound interest account respectively . if the interest rates for both accounts were the same , what was the amount of julie ' s initial savings ? 
Options: a ) 600 , b ) 720 , c ) 1080 , d ) 2200 , e ) 3600

Ex Output:
e


Ex Input:
Problem: bhanu spends 30 % of his income on petrol on scooter 12 % of the remaining on house rent and the balance on food . if he spends rs . 300 on petrol then what is the expenditure on house rent ? 
Options: a ) 62 , b ) 140 , c ) 84 , d ) 60 , e ) 123

Ex Output:

c