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.

[EX Q]: 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
[EX A]: Option B

[EX Q]: Question: A student missed 6% of the questions on a test. If the student missed 12 questions, how many questions were on the test?

 Option A: 100

 Option B: 150

 Option C: 200

 Option D: 250

 Option E: 300
[EX A]: Option C

[EX Q]: Question: You have three pills with you which you are required to take one after every thirty minutes.
How long can the pills run for you?

 Option A: 45 Min

 Option B: 55 Min

 Option C: 50 Min

 Option D: 70 Min

 Option E: 60 Min
[EX A]:
Option E