Find an Equation of the Parabola Whose Graph Is Shown $x ^ { 2 } = 4 y$

Multiple Choice

Find an equation of the parabola whose graph is shown.

A) $x ^ { 2 } = 4 y$
B) $x ^ { 2 } = 16 y$
C) $y ^ { 2 } = 16 x$
D) $y ^ { 2 } = 8 x$
E) none of these