Find the Axis of Symmetry of the Quadratic Function $$f ( x ) = - ( x + 3 ) ^ { 2 } + 9$$

Multiple Choice

Find the axis of symmetry of the quadratic function.
- $$f ( x ) = - ( x + 3 ) ^ { 2 } + 9$$

A) $x = - 9$
B) $x = 3$
C) $x = - 3$
D) $x = 9$