Which expression is equal to (32) (8) (5x) using the associative property?

Seeing as there are no answer choices, here are all the answers I would think to make. Quick note, associative property of multiplication states that you can change the parenthesis/order of your multiplication in any order and it will stay true, example: (5) (8) (3) = 40*3 and 24*5.

Answers: (32) (40) (x), (32) (40x), (32) (8) (5) (x), (32) (8x) (5), (160) (8x), (160x) (8), (160) (8) (x), (32x) (8) (5), (256x) (5), (256) (5x), (256) (5) (x), (1280) (x), (1280x)