The following compound can readily be prepared by Williamson ether synthesis by reaction between

Step-by-step solution

Williamson ether synthesis is the reaction in which an alkyl halide is allowed to react with alkoxide to give ether. The reaction involves S N 2 attack of an alkoxide ion on primary alkyl halide. In option a and b there are alkoxide and alkyl halide, but option b is preferred because I is better leaving group than Cl -