In the above conversion of compound $(X)$ to product $(Y)$,the sequence of reagents to be used will be:

• A
  $(I) Br_2, Fe$ $(II) Fe, H^{+}$ $(III) LiAlH_4$
• B
  $(I) Br_2 (aq)$ $(II) LiAlH_4$ $(III) H_3O^{+}$
• C
  $(I) Fe, H^{+}$ $(II) Br_2 (aq)$ $(III) HNO_2$ $(IV) CuBr$
• D
  $(I) Fe, H^{+}$ $(II) Br_2 (aq)$ $(III) HNO_2$ $(IV) H_3PO_2$