Find the equation of a circle with its center at (5, -2) and a radius of 16.


(x - 5)2 + (y + 2)2 = 256
(x + 5)2 + (y - 2)2 = 256
(x - 5)2 + (y - 2)2 = 256
(x + 5)2 + (y + 2)2 = 256