Draw a graph of $V$ versus $r$ for a uniformly charged spherical shell of radius $R$.
- AGraph showing $V$ is constant for $r < R$ and $V \propto 1/r$ for $r \ge R$.
- BGraph showing $V \propto r$ for $r < R$ and $V \propto 1/r^2$ for $r \ge R$.
- CGraph showing $V = 0$ for $r < R$ and $V \propto 1/r$ for $r \ge R$.
- DGraph showing $V \propto 1/r$ for all $r$.
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