Find the equation of a parabola with a focus at (–2,–3) and a directrix at y = –5.

A)

y = 1∕4(x + 2)2 – 4

B)

y = –1∕16(x + 2)2 – 4

C)

y = 1∕4(x – 2)2 – 4

D)

y = 1∕4(x + 2)2 – 8