The centre and radius of the circle $$z\overline{z} - (2 + 3i)z - (2 - 3i)\overline{z} + 9 = 0$$ are

A

(2, 3), 2

B

(2, -3), 2

C

(2, 3), $$\sqrt{2}$$

D

(2, -3), $$\sqrt{2}$$