Arrange the following functional groups in order of priority according to the $IUPAC$ system: $-CHO, -COOH, -SO_3H, -CONH_2$.

  • A
    $-COOH > -CHO > -SO_3H > -CONH_2$
  • B
    $-COOH > -SO_3H > -CONH_2 > -CHO$
  • C
    $-SO_3H > -COOH > -CONH_2 > -CHO$
  • D
    $-COOH > -CONH_2 > -CHO > -SO_3H$

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