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: Factor (x + 4)3 - 9x - 36 =

 Option A: (x - 4

 Option B: (x + 6

 Option C: (x + 4

 Option D: (x + 4

 Option E: None

Ex Output:
Option D


Ex Input:
Question: A rectangular plot measuring 90 metres by 50 metres is to be enclosed by wire fencing. If the poles of the fence are kept 10 metres apart, how many poles will be needed ?

 Option A: 28

 Option B: 56

 Option C: 57

 Option D: 58

 Option E: None of these

Ex Output:
Option A


Ex Input:
Question: Using all the letters of the word "SULOCHANA", how many words can be formed, which begin with M and end with M?

 Option A: 5040

 Option B: 2010

 Option C: 3028

 Option D: 6078

 Option E: 1025

Ex Output:

Option A