Find the equation of the circle with center at (-1, -4) and radius of 2.
a. (x - 1)2 + (y-4)2 = 4
č. (x + 1)2 + (y+4)2 = 2
b. (x+ 1)2 + (y + 4) = 4
d. (x-1)2 + (y-4)2 = 2