Factor by Grouping $$x ^ { 2 } - 3 x - 3 x + 9$$

Multiple Choice

Factor by grouping.
- $$x ^ { 2 } - 3 x - 3 x + 9$$

A) $( x - 3 ) ( x - 3 )$
B) $( x - 3 ) ( x + 6 )$
C) $( x + 3 ) ( x - 3 )$
D) $- 6 x \left( x ^ { 2 } + 9 \right)$