Find the Center and Radius of the Sphere $x ^ { 2 } - 6 x - 36 + y ^ { 2 } + 24 y + z ^ { 2 } - 18 z = 0$

Multiple Choice

Find the center and radius of the sphere. $x ^ { 2 } - 6 x - 36 + y ^ { 2 } + 24 y + z ^ { 2 } - 18 z = 0$

A) $C ( - 1 , - 12 , - 13 ) , r = 6$
B) $C ( - 1 , - 12 , - 13 ) , r = 6 \sqrt { 2 }$
C) $C ( - 1 , - 12 , - 13 ) , r = \sqrt { 2 }$
D) $C ( 1 , - 12 , - 13 ) , r = 6$
E) none of these