The aryl bromide shown is heated with dilute aqueous $\mathrm{NaOH}$. What is observed under ordinary laboratory conditions?

1. ARapid $\mathrm{S}{}_{\mathrm{N}}2$ giving phenol
2. BNo substitution, because the carbon is $s{p}^2$ and neither $\mathrm{S}{}_{\mathrm{N}}1$ nor $\mathrm{S}{}_{\mathrm{N}}2$ is feasible
3. CRapid $\mathrm{S}{}_{\mathrm{N}}1$ giving phenol through a phenyl cation
4. DSubstitution only at the ortho position