Find an Equation of the Parabola Described $y ^ { 2 } = 16 x$

Multiple Choice

Find an equation of the parabola described.
-Focus at (4, 0) ; vertex at (0, 0)

A) $y ^ { 2 } = 16 x$
B) $x ^ { 2 } = 16 y$
C) $x ^ { 2 } = 4 y$
D) $y ^ { 2 } = 4 x$