Solve for the Indicated Letter $S=\frac{1}{2} \pi r^{2}+(r+4) h$ For $r$
A)

Multiple Choice

Solve for the indicated letter.
-Solve $S=\frac{1}{2} \pi r^{2}+(r+4) h$ for $r$ .

A) $r=\frac{-h \pm \sqrt{h^{2}-8 \pi h+2 \pi S}}{\pi}$
B) $r=\frac{-h \pm \sqrt{h^{2}-8 \pi h-2 \pi S}}{\pi}$
C) $r=\frac{h \pm \sqrt{h^{2}-8 \pi h+2 \pi S}}{\pi}$
D) $r=\frac{-h \pm \sqrt{h^{2}+8 \pi h+2 \pi S}}{\pi}$