Magoosh GMAT Question of the Day - Data Sufficiency - "Is n prime"

If n is a positive integer and n < 20, is n a prime number?

(1) n^3 has exactly 4 positive divisors
(2) n is not divisible by 2, 3 or 5

(A) Statement 1 ALONE is sufficient to answer the question, but statement 2 alone is NOT sufficient.
(B) Statement 2 ALONE is sufficient to answer the question, but statement 1 alone is NOT sufficient.
(C) BOTH statements 1 and 2 TOGETHER are sufficient to answer the question, but NEITHER statement ALONE is sufficient.
(D) Each statement ALONE is sufficient to answer the question.
(E) Statement 1 and 2 TOGETHER are NOT sufficient to answer the question.