Factor Out the Greatest Common Factor $$( x - 3 ) ( x + 7 ) + ( x - 3 ) ( x + 9 )$$

Multiple Choice

Factor out the greatest common factor. Simplify the factors, if possible.
- $$( x - 3 ) ( x + 7 ) + ( x - 3 ) ( x + 9 )$$

A) $( x - 3 ) ( x + 16 )$
B) $2 ( x - 3 ) ( x + 8 )$
C) $( x - 3 ) ( 2 x + 16 )$
D) $2 ( x - 3 ) ( 2 x + 16 )$