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 fish can go upstream at 35 kmph and downstream at 55 kmph, and then find the speed of the fish in still water?

 Option A: 45

 Option B: 55

 Option C: 35

 Option D: 65

 Option E: 70

Ex Output:
Option A


Ex Input:
Question: 5, 9, 17, 29, 45, ?

 Option A: 65

 Option B: 56

 Option C: 74

 Option D: 57

 Option E: 32

Ex Output:
Option A


Ex Input:
Question: In how many different number of ways a Committee of 3person of can be selected from 4boys and 3girls such that at least 1 girl is included in the committe

 Option A: 30

 Option B: 29

 Option C: 31

 Option D: 17

 Option E: 85

Ex Output:

Option C