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: What is the units digit of 18! + 5 ?

 Option A: 2

 Option B: 3

 Option C: 4

 Option D: 5

 Option E: 6
[EX A]: Option D

[EX Q]: Question: The number which exceeds 16% of it by 42 is?

 Option A: 50

 Option B: 25

 Option C: 52

 Option D: 58

 Option E: 60
[EX A]: Option A

[EX Q]: Question: If p and q are prime numbers, how many divisors does the product p^6 * q^7 have?

 Option A: 40

 Option B: 56

 Option C: 60

 Option D: 62

 Option E: 70
[EX A]:
Option B