Which is an equation of a circle with center (-5, -7) and radius 6?



(x + 5)2 + (y + 7)2 = 6

(x + 7)2 + (y + 5)2 = 36

(x + 5)2 + (y + 7)2 = 36

(x - 5)2 + (y - 7)2 = 6