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: The average of 4,8,12 and x is 10. Find the value of x?

Option A: 10

Option B: 16

Option C: 15

Option D: 24

Option E: 12

Ex Output:
Option B

Ex Input:
Question: The radius of a cylinder is 8 m, height 14 m. The volume of the cylinder is:

Option A: 2816

Option B: 5500

Option C: 3300

Option D: 1100

Option E: 4400

Ex Output:
Option A

Ex Input:
Question: A shopkeeper's price is 50% above the cost price. If he allows his customer a discount of 30% what profit does he make?

Option A: 5%

Option B: 10%

Option C: 15%

Option D: 20%

Option E: None of these

Ex Output:
Option A