Find the Center and Radius of the Sphere with the Equation

Multiple Choice

Find the center and radius of the sphere with the equation $x ^ { 2 } + 2 x + y ^ { 2 } - 2 y + z ^ { 2 } - 4 z + 5 = 0$

A) $( - 1,1,2 ) , r = 1$
B) $( 1 , - 1 , - 2 ) , r = 1$
C) $( - 1,1,2 ) , r = 5$
D) $( - 1,1,2 ) , r = \sqrt { 5 }$