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: Plaudia can choose any two of four different candles and any 8 of 9 different flowers for a centerpiece arrangement. Given these choices, how many candle + flower groupings can she select?

Option A: 54

Option B: 72

Option C: 96

Option D: 144

Option E: 432

Ex Output:
Option A

Ex Input:
Question: A, B and C enter into partnership. A invests some money at the beginning, B invests double the amount after 6 months, and C invests thrice the amount after 8 months. If the annual gain be Rs.18000. A's share is?

Option A: 6029

Option B: 6299

Option C: 6000

Option D: 6018

Option E: 60012

Ex Output:
Option C

Ex Input:
Question: If x is positive and y is negative, which of the following must be true?

Option A: The product of x and y is positive

Option B: The sum of x and y is positive

Option C: The sum of x and y is negative

Option D: The difference of x and y is positive

Option E: The sum of x^2 and y^2 is positive

Ex Output:
Option E