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'.

Example Input: Problem: rs . 1500 is divided into two parts such that if one part is invested at 6 % and the other at 5 % the whole annual interest from both the sum is rs . 86 . how much was lent at 5 % ? 
Options: a ) 388 , b ) 2998 , c ) 277 , d ) 500 , e ) 400
Example Output: e

Example Input: Problem: the value of a machine depreciates at 20 % per annum . if its present value is rs . 1 , 50,000 , at what price should it be sold after two years such that a profit of rs . 24,000 is made ? 
Options: a ) 328897 , b ) 120000 , c ) 877888 , d ) 277768 , e ) 188871
Example Output: b

Example Input: Problem: by investing rs . 1800 in 9 % stock , syam earns rs . 120 . find out the stock is then quoted at which rate ? 
Options: a ) 130 , b ) 135 , c ) 140 , d ) 150 , e ) 145
Example Output:
b