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: Two pipes P and Q can fill a cistern in 12 and 14 minutes respectively. Both are opened together, but at the end of 3 minutes the first is turned off. How much longer will the cistern take to fill?

Option A: 11 1/2 min

Option B: 11 1/4 min

Option C: 11 2/4 min

Option D: 11 1/5 min

Option E: 10 1/2 min

Ex Output:
Option E

Ex Input:
Question: Today Joelle opened an interest-bearing savings account and deposited $5,000. If the annual interest rate is 5 percent compounded interest, and she neither deposits nor withdraws money for exactly 2 years, how much money will she have in the account?

Option A: $6512.50

Option B: $7512.50

Option C: $5512.50

Option D: $4512.50

Option E: $5250.00

Ex Output:
Option C

Ex Input:
Question: Paul is going with 5 friends on a trip to Rome for spring break. Airfare and hotel costs a total of $3600 for the group of 6 friends. How much does each person have to pay for their hotel and airfare?

Option A: $400

Option B: $500

Option C: $600

Option D: $660

Option E: $680

Ex Output:
Option C