$(x+6 y)(x-9 y)$ A) $x-3 x y-54 y$ B) $x^{2}-3 x y-3 y^{2}$

Multiple Choice

$(x+6 y) (x-9 y)$

A) $x-3 x y-54 y$
B) $x^{2}-3 x y-3 y^{2}$
C) $x^{2}-3 x y-54 y^{2}$
D) $x^{2}-6 x y-54 y^{2}$