Solve the Problem $x y - z ^ { 2 } - 6 y + 36 = 0$

Multiple Choice

Solve the problem.
-What is the distance from the surface $x y - z ^ { 2 } - 6 y + 36 = 0$ to the origin?

A) $6 \sqrt { 2 }$
B) $2 \sqrt { 3 }$
C) $6 \sqrt { 3 }$
D) $2 \sqrt { 6 }$