When \(24\) is divided by the positive integer \(n,\) the remainder is \(4.\) Which of the following statements about \(n\) must be true?
I. \(n\) is even.
II. \(n\) is a multiple of \(5.\)
III. \(n\) is a factor of \(20.\)
A) III only
B) I and II only
C) I and III only
D) II and III only
E) I, II, and III
Answer: D
Source: Official Guide