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.

Example Input: Question: The ratio of a to b to c is 2 to 3 to 4, and a, b, c are positive integers. If the average (arithmetic mean) of the three numbers is 36, what is the value of a?

Option A: 21

Option B: 24

Option C: 25

Option D: 27

Option E: 30
Example Output: Option B

Example Input: Question: An article is bought for Rs.675 and sold for Rs.1215, find the gain percent?

Option A: 33 1/9%

Option B: 33 8/3%

Option C: 33 1/3%

Option D: 33 2/3%

Option E: 80%
Example Output: Option E

Example Input: Question: The area of a circular place is 17.56 hectares. Find the cost of fencing it at the rate of Rs. 3/meter approximately.

Option A: Rs. 4233

Option B: Rs. 4350

Option C: Rs. 4457

Option D: Rs. 4670

Option E: Rs. 4756
Example Output:
Option C