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: If the operation ∆ is defined by a ∆ b = (b - a)^2/a^2 for all numbers a and b, and a ≠ 0, then what is the result when we evaluate this expression: (-5) ∆ (5 ∆ −5) ?

 Option A: 49/9

 Option B: 49/16

 Option C: 81/16

 Option D: 81/25

 Option E: 100/81

Output: Option D


Input: Consider Input: Question: Kim has 3 pairs of shoes; each pair is a different color. If Kim randomly selects 2 shoes without replacement from the 6 shoes, what is the probability that she will select 2 shoes of the same color?

 Option A: 2/5

 Option B: 1/5

 Option C: 1/9

 Option D: 1/10

 Option E: 1/25

Output: Option B


Input: Consider Input: Question: Look at this series 8, 22, 8, 28, 8, ... What number should come next?

 Option A: 34

 Option B: 8

 Option C: 12

 Option D: 44

 Option E: 30


Output: Option A