You are given a math word problem and you are supposed to make use of mathematical concepts like probability, combinatorics, linear equations, sequences/series, or simple operators like addition, subtraction, division, or multiplication to answer the given question. Choose the best option from the 5 given options and report that option.

Ex Input:
Question: A reduction of 20% in the price of salt enables a lady to obtain 25 kgs more for Rs.100, find the original price per kg?

 Option A: 6

 Option B: 1

 Option C: 5

 Option D: 4

 Option E: 7

Ex Output:
Option B


Ex Input:
Question: A certain population of bacteria doubles every 10 minutes. If the number of bacteria in the population initially was 10^5, then what was the number in the population 50 minutes later?

 Option A: 2(10^5

 Option B: 5(10^5

 Option C: (2^5

 Option D: (10^5

 Option E: (10^5

Ex Output:
Option C


Ex Input:
Question: The profit earned after selling a T-shirt for Rs.575/- is the same as loss incurred after selling the same T-shirt for Rs.295/-. What is the cost price of the T-shirt?

 Option A: Rs.425/-

 Option B: Rs.435/-

 Option C: Rs.415/-

 Option D: Rs.245/-

 Option E: None of these

Ex Output:

Option B