Acetaldehyde can be converted into $C(CH_2OH)_4$ (pentaerythritol) by which reagent?

  • A
    $KOH$
  • B
    $KOH$ followed by $LiAlH_4$
  • C
    excess of $HCHO$ and $KOH$
  • D
    $KCN$ followed by $NaBH_4$

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