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: The least number of complete years in which a sum of money put out at 20% C.I. will be more than doubled is?

 Option A: 3

 Option B: 4

 Option C: 9

 Option D: 3

 Option E: 5

Output: Option B


Input: Consider Input: Question: If N = 2^0.1 and N^b = 16, b must equal

 Option A: 3/80

 Option B: 3/5

 Option C: 40

 Option D: 5/3

 Option E: 80/3

Output: Option C


Input: Consider Input: Question: The two lines y = x and x = -4 intersect on the coordinate plane. If z represents the area of the figure formed by the intersecting lines and the x-axis, what is the side length E of a cube whose surface area is equal to 6z?

 Option A: E=16

 Option B: E=8√2

 Option C: E=8

 Option D: E=2√2

 Option E: (√2


Output: Option D