Find the Specified Domain $( f g ) ( x )$

Multiple Choice

Find the specified domain.
-Find the domain of $( f g ) ( x )$ when $f ( x ) = \frac { 2 } { x - 6 }$ and $g ( x ) = - 7 x - 5$

A) $( - \infty , - 6 ) \cup ( - 6 , \infty )$
B) $( - \infty , 5 ) \cup ( 5 , \infty )$
C) $( - \infty , \infty )$
D) $( - \infty , 6 ) \cup ( 6 , \infty )$