In the following reaction sequence, $\mathrm{X}$ and $\mathrm{Y}$, respectively are

• A

  $\mathrm{H}_{2} \mathrm{O}_{2} ; \mathrm{LiAlH}_{4}$
• Correct answer
  B

  $\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{COOOH} ; \mathrm{LiAlH}_{4}$
• C

  $\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{COOOH} ; \mathrm{Zn} / \mathrm{Hg} \cdot \mathrm{HCl}$
• D

  Alkaline $\mathrm{KMnO}_{4} ; \mathrm{LiAlH}_{4}$

Hence, the correct answer is option: 'B'.