Identify the products '$X$' and '$Y$' in the following chemical reaction sequence: $C_6H_5CH_2MgBr \xrightarrow[(ii) H_3O^+]{(i) CO_2/ether} 'X' \xrightarrow{NaOH + CaO, \Delta} 'Y'$

• A
  $X$ = Phenylacetic acid,$Y$ = Toluene
• B
  $X$ = Benzoic acid,$Y$ = Benzene
• C
  $X$ = Phenylacetic acid,$Y$ = Benzene
• D
  $X$ = Benzoic acid,$Y$ = Toluene