What is the standard form of the equation of the circle with center (-2, -3) and a radius of _/2 /4 ? a) (x - 3)2 + (y - 2)2 = 1 8 b) (x + 3)2 + (y + 2)2 = 1 8 c) (x - 2)2 + (y - 3)2 = 1 8 d) (x + 2)2 + (y + 3)2 = 1 8