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.

Example Input: Question: The average weight of 10 person's increases by 4 kg when a new person comes in place of one of them weighing 70kg. What is the weight of the new person?

Option A: 85

Option B: 86.5

Option C: 90

Option D: 88.5

Option E: 110
Example Output: Option E

Example Input: Question: If f(y)=y^2 and y is a positive integer, which of the following CANNOT be the value of f(f(y))?

Option A: 1

Option B: 144

Option C: 81

Option D: 16

Option E: 256
Example Output: Option B

Example Input: Question: If "*" is called "+", "/" is called "*", "-" is called "/", "+" is called "-". 240/80 60 * 40 - 10 = ?

Option A: 355

Option B: 341

Option C: 323.2

Option D: 425.6

Option E: 225.7
Example Output:
Option C