Find the Center and the Radius of the Circle $x ^ { 2 } + y ^ { 2 } + 6 x + 16 y + 9 = 0$

Find the center and the radius of the circle.
- $x ^ { 2 } + y ^ { 2 } + 6 x + 16 y + 9 = 0$

A) center $( 8,3 )$ , radius $= 64$
B) center $( - 3 , - 8 )$ , radius $= 8$
C) center $( 3,8 )$ , radius $= 64$
D) center $( - 8 , - 3 )$ , radius $= 8$