Find the Focus and Directrix of the Parabola $$y ^ { 2 } - 16 x = 0$$

Multiple Choice

Find the focus and directrix of the parabola.
- $$y ^ { 2 } - 16 x = 0$$

A) (4, 0) ; x = 4
B) (0, 4) ; y = -4
C) (4, 0) ; x = -4
D) (4, 0) ; y = -4