Select the correct statements about organolithium and organocopper reagents.

1. AAn organolithium reagent is less basic than the corresponding Grignard reagent and reacts more slowly with water.
2. BTwo equivalents of $\mathrm{RLi}$ react with $\mathrm{CuI}$ to give the Gilman reagent $\mathrm{R}{}_2\mathrm{CuLi}$ and $\mathrm{LiI}$.
3. CAn alkyl halide reacts with two equivalents of lithium metal in dry ether to give $\mathrm{RLi}$ and $\mathrm{LiX}$.
4. DA Gilman reagent $\mathrm{R}{}_2\mathrm{CuLi}$ reacts with an acid chloride $\mathrm{R}{}^{\prime }\mathrm{COCl}$ to give a ketone $\mathrm{R}{}^{\prime }\mathrm{COR}$.