Find the Center and Radius of the Circle $$4 x ^ { 2 } + 4 y ^ { 2 } - 40 x - 8 y + 40 = 0$$

Multiple Choice

Find the center and radius of the circle.
- $$4 x ^ { 2 } + 4 y ^ { 2 } - 40 x - 8 y + 40 = 0$$

A) center: (-5, -1) , radius: 16
B) center: (5, 1) , radius: 4
C) center: (-1, -5) , radius: 16
D) center: (1, 5) , radius: 4