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: Which of the following is NOT a factor of 10! ?

 Option A: 1440

 Option B: 625

 Option C: 160

 Option D: 80

 Option E: 50

Ex Output:
Option B


Ex Input:
Question: Pipe A can fill a tank in 16 minutes and pipe B cam empty it in 24 minutes. If both the pipes are opened together after how many minutes should pipe B be closed, so that the tank is filled in 30 minutes?

 Option A: 20

 Option B: 16

 Option C: 24

 Option D: 28

 Option E: 21

Ex Output:
Option E


Ex Input:
Question: If f(x)= 5x^2- 2x+6 and g(y)= 3y-4, then g(f(x))

 Option A: 82x^2-9x+38

 Option B: 15x^2-6x+14

 Option C: 58x^2-4x+58

 Option D: 87x^2-5x+96

 Option E: 98x^2-7x+94

Ex Output:

Option B