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: What is the units digit of 18! + 5 ?

 Option A: 2

 Option B: 3

 Option C: 4

 Option D: 5

 Option E: 6

Ex Output:
Option D


Ex Input:
Question: On flipping 3 coins together what is the outcomes for at least four tail?

 Option A: 1/7

 Option B: 0

 Option C: 1

 Option D: 4/13

 Option E: 5/13

Ex Output:
Option B


Ex Input:
Question: The radius of a wheel is 22.4 cm. What is the distance covered by the wheel in making 500 resolutions.

 Option A: 287 m

 Option B: 704 m

 Option C: 168 m

 Option D: 278 m

 Option E: 107 m

Ex Output:

Option B