Find the Center and Radius of the Circle $$x ^ { 2 } + y ^ { 2 } - 16 x + 8 y + 55 = 0$$

Multiple Choice

Find the center and radius of the circle.
- $$x ^ { 2 } + y ^ { 2 } - 16 x + 8 y + 55 = 0$$

A) center: (4, -8) ; radius: 25
B) center: (-4, 8) ; radius: 5
C) center: (-8, 4) ; radius: 25
D) center: (8, -4) ; radius: 5