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 arrangements that can be made with the letters of the word COPY so that the vowels occupy the even places?

 Option A: 6

 Option B: 144

 Option C: 777

 Option D: 992

 Option E: 221
[EX A]: Option A

[EX Q]: Question: If the perimeter of a rectangular garden is 600 m, its length when its breadth is 100 m is?

 Option A: 299 m

 Option B: 777 m

 Option C: 200 m

 Option D: 167 m

 Option E: 128 m
[EX A]: Option C

[EX Q]: Question: If a and b are positive integers such that a/b = 3.42, which of the following must be a divisor of a

 Option A: 57

 Option B: 32

 Option C: 45

 Option D: 26

 Option E: 20
[EX A]:
Option A