What is the general form of the equation for the given circle?


A: x2 + y2 − 8x − 8y + 23 = 0


B: x2 + y2 − 8x − 8y + 32 = 0


C: x2 + y2 − 4x − 4y + 23 = 0


D: x2 + y2 + 4x + 4y + 9 = 0