Find the Standard Form of the Equation of the Parabola $x = - 6$

Multiple Choice

Find the standard form of the equation of the parabola with the given characteristic and vertex at the origin.
Directrix: $x = - 6$

A) $y ^ { 2 } = 24 x$
B) $y ^ { 2 } = x$
C) $y ^ { 2 } = - 24 x$
D) $x ^ { 2 } = 24 y$
E) $x ^ { 2 } = - 24 y$