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: A man has $480 in the denominations of one-Dollar, five-Dollar notes and ten-Dollar. The number of Dollars of each denomination is equal. What is the total number of Dollar that he has ?

Option A: 50

Option B: 60

Option C: 90

Option D: 48

Option E: 67
Example Output: Option C

Example Input: Question: Find compound interest on Rs. 5000 at 12% per annum for 1 year, compounded half-yearly.

Option A: Rs. 600

Option B: Rs. 618

Option C: Rs. 525

Option D: Rs. 620

Option E: None
Example Output: Option B

Example Input: Question: What is the median from the below series 90, 92, 93, 88, 95, 88, 97, 87, and 98

Option A: 80

Option B: 82

Option C: 92

Option D: 98

Option E: 100
Example Output:
Option C