Find the Standard Form of the Equation of the Parabola $( 0 , - 4 )$

Multiple Choice

Find the standard form of the equation of the parabola with the given characteristic and vertex at the origin. Focus: $( 0 , - 4 )$

A) $x ^ { 2 } = 16 y$
B) $y ^ { 2 } = x$
C) $y ^ { 2 } = 16 x$
D) $x ^ { 2 } = - 16 y$
E) $y ^ { 2 } = - 16 x$