D is the set of all the multiples of 5 between 20 and 100. E is the set of all the factors of 999. Set D and Set E have how many numbers in common? Choose one:
A) 2 B) 1 C) 3 D) 0 E) 12
D is a set of multiples of 5.   999 is NOT a multiple of 5, hence none of its factors is a multiple of 5.   Therefore, those two sets won't have any overlap.   Answer: 0
<result>D</result>
D is the set of all the multiples of 5 between 20 and 100. E is the set of all the factors of 999. Set D and Set E have how many numbers in common?