Find the Center and Radius of the Circle by Completing $x^{2}-4 x+y^{2}-6 y+1=0$

Multiple Choice

Find the center and radius of the circle by completing the square.
- $x^{2}-4 x+y^{2}-6 y+1=0$

A) $(-2,-3) ; r=12$
B) $(-2,-3) ; r=2 \sqrt{3}$
C) $(2,3) ; r=12$
D) $(2,3) ; r=2 \sqrt{3}$