$3$-hydroxybutanal is formed when $(X)$ reacts with $(Y)$ in a dilute $(Z)$ solution. What are $X, Y$ and $Z$?

  • A
    $CH_3CHO, CH_3COCH_3, NaOH$
  • B
    $CH_3CHO, CH_3CHO, NaCl$
  • C
    $CH_3COCH_3, CH_3COCH_3, HCl$
  • D
    $CH_3CHO, CH_3CHO, NaOH$

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