The Symmetric Equations of the Normal Line to the Surface $x ^ { 2 } = 12 y$

Multiple Choice

The symmetric equations of the normal line to the surface $x ^ { 2 } = 12 y$ at (-6, 3, 1) are

A) $\frac { x + 6 } { 2 } = y - 3 , z = 1$
B) $x + 6 = y - 3 , z = 1$
C) $x + 6 = \frac { y - 3 } { 2 } , z = 1$
D) $\frac { x + 6 } { 3 } = y - 3 , z = 1$
E) $x + 6 = \frac { y - 3 } { 3 } , z = 1$