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'.

Input: Consider Input: Problem: a man walking at a rate of 15 km / hr crosses a bridge in 20 minutes . the length of the bridge is ? 
Options: a ) 1250 m , b ) 1110 m , c ) 950 m , d ) 1000 m , e ) 1300 m

Output: d


Input: Consider Input: Problem: at an election 2 candidates are participated a candidate got 30 % of votes and defeated by 5000 votes . 100 votes are invalid . find the total polled votes ? 
Options: a ) 11520 , b ) 12600 , c ) 15000 , d ) 13560 , e ) 12560

Output: b


Input: Consider Input: Problem: a man bought 40 shares of rs . 80 at 5 discount , the rate of dividend being 12 1 / 2 % the rate of interest obtained is 
Options: a ) 13.33 % , b ) 15.5 % , c ) 14 % , d ) 14.25 % , e ) 14.95 %


Output: a