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.

Example Input: Question: In the rectangular coordinate system, what is the x-intercept of a line passing through (10, 3) and (6, 5)?

Option A: 4

Option B: 2

Option C: 0

Option D: 2

Option E: 4
Example Output: Option A

Example Input: Question: Rahul went to a shop and bought things worth Rs. 50, out of which 80 Paise went on sales tax on taxable purchases. If the tax rate was 8%, then what was the cost of the tax free items?

Option A: 21.4

Option B: 12.4

Option C: 41.2

Option D: 39.2

Option E: 32.9
Example Output: Option D

Example Input: Question: You collect pens. Suppose you start out with 5. Mike gives you another 20 pens. Since her father makes pens, Cindy decides to double your pens. Since you're nice, you give Sharon 19 pens. How many pens do you have at the end?

Option A: 39

Option B: 40

Option C: 31

Option D: 42

Option E: 43
Example Output:
Option C