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: Kaushalya can do a work in 20 days, while kaikeyi can do the same work in 25 days. They started the work jointly.Few days later Sumitra also joined them and thus all of them completed the whole work in 10 days. All of them were paid total Rs.700. What is the Share of Sumitra?

 Option A: Rs.130

 Option B: Rs.185

 Option C: Rs.70

 Option D: can't be determined

 Option E: None of these
Example Output: Option C

Example Input: Question: Look at this series: 8, 43, 11, 41, __, 39, 17, ... What number should fill in the blank?

 Option A: 22

 Option B: 33

 Option C: 14

 Option D: 16

 Option E: 18
Example Output: Option C

Example Input: Question: The ratio of 2 numbers is 10:20 and their H.C.F. is 100. Their L.C.M. is ?

 Option A: 1100

 Option B: 3000

 Option C: 2100

 Option D: 1000

 Option E: 2000
Example Output:
Option E