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: 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: 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: what comes next?
7, -35, -34, -3, 15, 16, 4

Option A: -20

Option B: -15

Option C: 5

Option D: 21

Option E: 33

Ex Output:
Option A