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: If x, y, and z are positive integers such that x is a factor of y and y is a factor of z, which of the following is NOT necessarily an integer?

 Option A: (x + y

 Option B: (y + z

 Option C: yz/x

 Option D: (2y + 3z

 Option E: (xy + z

Ex Output:
Option A


Ex Input:
Question: A river 5m deep and 19 m wide is flowing at the rate of 4 kmph the amount of water that runs into the sea per minute is?

 Option A: 4500

 Option B: 6333

 Option C: 6576

 Option D: 6345

 Option E: 2882

Ex Output:
Option B


Ex Input:
Question: X and Y together do a piece of work in 8 days. If X alone can do the same work in 12 days, then Y alone can do the same work in?

 Option A: 15 days

 Option B: 20 days

 Option C: 24 days

 Option D: 30 days

 Option E: 23 days

Ex Output:

Option C