Identify the product$(s)$ formed in the following reaction.

When ether is exposed to air for some time,an explosive substance produced is:

Diethyl ether and air give ether hydroperoxide. The mechanism of the reaction is

$C_6H_5OC_2H_5 + HI \rightarrow X + Y$. Here $X$ and $Y$ are . . . . . . .

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:

Which of the following cannot be prepared by Williamson synthesis?