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: X is a prime number bigger than 10. Also, Y = X+X^3+X^5+X^7. What is definitely true about Y?

Option A: Y is a prime number.

Option B: Y is odd.

Option C: Y is even.

Option D: Y is divisible by 3.

Option E: Y is divisible by 7.

Ex Output:
Option C

Ex Input:
Question: Marge has 3 pumps for filling her swimming pool. When all 3 pumps work at their maximum rates, the swimming pool is filled in 66 minutes. Pump 1's maximum rate is twice the maximum rate of pump 2 and four times the maximum rate of pump 3. How long would it take Marge to fill the pool if she used only pump 3 at its maximum rate ?

Option A: 2hrs, 48mins

Option B: 6hrs, 32mins

Option C: 7hrs, 12mins

Option D: 13hrs, 4mins

Option E: 7hrs, 42mins

Ex Output:
Option E

Ex Input:
Question: If a = 1, what is the value of (a^2 + a^3 + a^4 + a^5+a^6)?

Option A: -14

Option B: -4

Option C: 0

Option D: 4

Option E: -5

Ex Output:
Option E