How many multiples of 4 are there between 20 and 112, inclusive?
Select the correct option:
A) 21
B) 22
C) 23
D) 24
E) 25

Rationale: "the multiples of 4 are from 4 * 5 up to 4 * 28 . 28 - 5 + 1 = 24 . the answer is d ."
Answer: D