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.

Input: Consider Input: Question: In a box, there are 8 red, 7 blue and 6 green balls. One ball is picked up randomly. What is the probability that it is neither red nor green?

Option A: 1/3

Option B: 2/5

Option C: 3/7

Option D: 8/27

Option E: 9/29

Output: Option A

Input: Consider Input: Question: The number of diagonals of a polygon of n sides is given by the formula z=n(n-3)/2. If a polygon has twice as many diagonals as sides, how many sides does it have?

Option A: 3

Option B: 5

Option C: 6

Option D: 7

Option E: 8

Output: Option B

Input: Consider Input: Question: Nitin borrowed some money at the rate of 6% p.a. for the first three years, 9% p.a. for the next five years and 13% p.a. for the period beyond eight years. If the total interest paid by him at the end of eleven years is Rs. 11220, how much money did he borrow?

Option A: 11000

Option B: 80288

Option C: 2668

Option D: 2600

Option E: 2781
Output: Option A