I'll give you a question, please answer with step-by-step reasoning process.
252 can be expressed as a product of primes as:\nOptions:\n(A) 2 x 2 x 3 x 3 x 7\n(B) 2 x 2 x 2 x 3 x 7\n(C) 3 x 3 x 3 x 3 x 7\n(D) 2 x 3 x 3 x 3 x 7\n(E) 7 x 3 x 3 x 3 x 7

(A)
252 = 2 x 2 x 3 x 3 x 7.

.

The answer is (A)