Which among the following reagents cannot be used for the above interconversion? The reaction involves the reduction of a ketone group $(>C=O)$ to a methylene group $(-CH_2-)$.

  • A
    $Zn-Hg/HCl$
  • B
    $HI/Red \ P, \ \Delta$
  • C
    $(i) \ NH_2-NH_2, \ (ii) \ OH^-/\Delta$
  • D
    $NaBH_4$

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