How is diethyl ether prepared by continuous etherification process? Why is the process so called?

The major product of the following reaction is

The following compound

can readily be prepared by Williamson ether synthesis by reaction between

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).

Assertion (A) : Synthesis of ethyl phenyl ether may be achieved by Williamson synthesis.

Reason (R): Reaction of bromobenzene with sodium ethoxide yields ethyl phenyl ether.

In the light of the above statements, choose the most appropriate answer from the options given below.