Answer:
B. 362,880
Step-by-step explanation:
You are solving for 9!.
9! = 9 * 8 * 7 * 6 * 5 * 4 * 3 * 2 * 1
Multiply:
(9 * 8) = 72
(7 * 6) = 42
(5 * 4) = 20
(3 * 2) = 6
(72 * 42) = 3024
(20 * 6) = 120
(3024 * 120) = 362,880
362,880 is your answer, or B).