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 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
[EX A]: Option C

[EX Q]: Question: There are 9 executives, including the CEO and CFO, that are asked to form a small team of 5 members. However, the CEO and CFO may not both be assigned to the team. Given this constraint, how many ways are there to form the team?

Option A: 85

Option B: 87

Option C: 89

Option D: 91

Option E: 93
[EX A]: Option D

[EX Q]: Question: Which one of the following numbers is exactly divisible by 11?

Option A: 235641

Option B: 245642

Option C: 315624

Option D: 415624

Option E: Done
[EX A]:
Option D