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: Look at this series: -2, 0, 2, 4,... What number should come next?

 Option A: 6

 Option B: 12

 Option C: 8

 Option D: 9

 Option E: 10

Ex Output:
Option A


Ex 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

Ex Output:
Option C


Ex Input:
Question: A can fill tank in 9 minutes, B can empty the tank in 18 minutes.. In what time the tank be filled, if both pipes work simultaneously?

 Option A: 14 minutes

 Option B: 15 minutes

 Option C: 16 minutes

 Option D: 17 minutes

 Option E: 18 minutes

Ex Output:

Option E