Which of the following answer choices is an equation for the circle with a center of (-2, 3) and a radius of 3?
A.
2x2 + 2y2 + 3x - 3y + 4 = 0

B.
3x2 + 3y2 + 4x - 6y + 4 = 0

C.
x2 + y2 + 4x - 6y + 4 = 0

D.
x2 + y2 + 4x - 6y + 22 = 0