Simplify the following expression. $$(2x - 3y)^3 - 18xy(2x - 3y)$$

A

$$8x^3 - 27y^3 - 36x^2y - 54xy^2$$

B

$$8x^3 - 72x^2y - 108xy^2 - 27y^3$$

C

$$8x^3 - 27y^3$$

D

$$8x^3 + 108xy^2 - 72x^2y$$