Find the Center and Radius of the Sphere $x ^ { 2 } + y ^ { 2 } + z ^ { 2 } - 4 x = 0$

Multiple Choice

Find the center and radius of the sphere. $x ^ { 2 } + y ^ { 2 } + z ^ { 2 } - 4 x = 0$

A) Center: $( 2,0 , - 2 )$ Radius: $2$
B) Center: $( 2,2,2 )$ Radius: $2$
C) Center: $( 2,0,2 )$ Radius: $2$
D) Center: $( 2,0,0 )$ Radius: $2$
E) Center: $( 2 , - 2,0 )$ Radius: $2$