Find the equation of the circle with centre $(-2,3)$ and radius $4$.

Question

$\begin{array}{1 1} x^2+y^2+4x-6y-3=0 \\ x^2+y^2+4x+6y-3=0 \\ x^2+y^2+4x-6y+3=0\\ x^2+y^2-4x-6y-3=0\end{array}$