The factorization of 15c 4 b 3 – 9b2 c 3 gives ____________________.
(a) 3b2 c 3 (5cb-3) (b) 3c2 b 3 (5cb-3) (c) 5b 2 c 3 (5cb-3b) (d) 3c2 b 3 (5b-3c)