Which of the following is a correct priority order for the selection of the principal functional group for the nomenclature of a polyfunctional compound?

  • A
    $-COOH > -SO_3H > -COOR$
  • B
    $-COOR > -COOH > -SO_3H$
  • C
    $-SO_3H > -COOR > -COOH$
  • D
    $-COOR > -SO_3H > -COOH$

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