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: For positive integers x and z, which of the following can be written as z^2?

 Option A: x^2+1

 Option B: x^2-1

 Option C: x^2-24

 Option D: x^2+11

 Option E: x^2-11

Ex Output:
Option D


Ex Input:
Question: (700 + 200) Ã— 4 Ã— (4 + 2) = ?

 Option A: 24500

 Option B: 21600

 Option C: 36600

 Option D: 22400

 Option E: 12500

Ex Output:
Option B


Ex Input:
Question: If four coins are tossed, the probability of getting two heads and two tails is

 Option A: 3/8

 Option B: 3/4

 Option C: 3/5

 Option D: 3/3

 Option E: 3/1

Ex Output:

Option A