Which of the following is the best synthesis of compound shown? (a) (b) (c) (d)

Williamson’s synthesis is the best method for preparing symmetrical and unsymmetrical ethers. In this method, alkyl halide is treated with suitable sodium alkoxide prepared by the action of sodium on suitable alcohol. The reaction involves nucleophilic substitution N S 2 attack of an alkoxide ion on primary alkyl halide. The general reaction is represented as follows, 2R' O Na + X R R' O R + NaX -> Thus, (c) is the correct option.