Which of the following methods can be used to prepare ethylbenzene from benzene or bromobenzene?

1. ABenzene with $\mathrm{C}{}_2\mathrm{H}{}_5\mathrm{Cl}$ and anhydrous $\mathrm{AlCl}{}_3$
2. BBenzene with $\mathrm{CH}{}_3\mathrm{COCl}$/$\mathrm{AlCl}{}_3$, then $\mathrm{Zn}(\mathrm{Hg})/\mathrm{HCl}$
3. CBenzene with $\mathrm{CH}{}_3\mathrm{COCl}$/$\mathrm{AlCl}{}_3$, then $\mathrm{NaBH}{}_4$
4. DBromobenzene with $\mathrm{C}{}_2\mathrm{H}{}_5\mathrm{Br}$ and sodium in dry ether (Wurtz-Fittig)