Find the Center and Radius of the Sphere $$x ^ { 2 } + y ^ { 2 } + z ^ { 2 } - 8 x - 2 y + 8 z = 3$$

Multiple Choice

Find the center and radius of the sphere.
- $$x ^ { 2 } + y ^ { 2 } + z ^ { 2 } - 8 x - 2 y + 8 z = 3$$

A) C(4, 1, 4) , a = 6
B) C(4, 1, -4) , a = 6
C) C(4, 1, -4) , a = 36
D) C(-4, -1, 4) , a = 6