Which reagents are required for one step conversion of chlorobenzene to toluene

Question. Which reagents are required for one step conversion of chlorobenzene to toluene?
(a) CH₃Cl / AlCl₃
(b) CH₃Cl, Na, Dry ether
(c)CH₃Cl/Fe dark
(d) NaNO₂/ HCl /0-5⁰C

Answer: (b) CH₃Cl, Na, Dry ether