Give the reaction of acid hydrolysis of ether.

What are the organic products formed in the following reaction? 

${\mathrm{C}}_6{\mathrm{H}}_5-\mathrm{COO}-{\mathrm{CH}}_3\underset{\left(\mathrm{ii}\right) {\mathrm{H}}_3{\mathrm{O}}^{+}}{\overset{\left(\mathrm{i}\right) {\mathrm{LiAlH}}_4}{\to }}$

Analyse the following reaction. If
${\mathrm{HOCH}}_2{\mathrm{CH}}_2{\mathrm{COCH}}_2{\mathrm{CH}}_2{\mathrm{CO}}_2\mathrm{Et}\stackrel{1{\mathrm{CH}}_3\mathrm{MgX}}{⟶}\mathrm{P}\stackrel{1{\mathrm{CH}}_3\mathrm{MgX}}{⟶}\mathrm{Q}\stackrel{1{\mathrm{CH}}_3\mathrm{MgX}}{⟶}\mathrm{R}$

Which is/are correct?

 A is

, is