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.
--------
Question: Question: How many numbers are divisible by 4 between 1 and 100.

 Option A: 24

 Option B: 23

 Option C: 22

 Option D: 21

 Option E: 25

Answer: Option A


Question: Question: The probability that a visitor at the mall buys a pack of candy is 30%. If three visitors come to the mall today, what is the probability that exactly two will buy a pack of candy?

 Option A: 343

 Option B: 147

 Option C: 189

 Option D: 063

 Option E: 027

Answer: Option C


Question: Question: If x > y and y > z, which of the following represents the greatest number W?

 Option A:  x − z

 Option B:  x − y

 Option C:  y − x

 Option D:  z − y

 Option E:  z − x

Answer:
Option A