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: If |x^2 20| = x, which of the following could be the value of x?

Option A: -5

Option B: -4

Option C: 1

Option D: 4

Option E: 10
Example Output: Option D

Example Input: Question: On dividing 21 by a number, the quotient is 10 and the remainder is 1. Find the divisor.

Option A: 1

Option B: 2

Option C: 4

Option D: 6

Option E: 7
Example Output: Option B

Example Input: Question: The entire contents of a full sack of flour can be used to make 15 cupcakes and 8 pizzas. The same full sack of flour can be used to make 5 cupcakes and 14 pizzas. If a full sack of flour is used to make only pizzas, how many pizzas can be made?

Option A: 18 1/4

Option B: 18 1/2

Option C: 18 3/4

Option D: 17

Option E: 19 1/4
Example Output:
Option D