For the species $HSO_4^{-}$ and $NH_3$,their conjugate acids respectively are

  • A
    $SO_4^{2-}$ and $NH_4^{+}$
  • B
    $SO_4^{2-}$ and $NH_2^{-}$
  • C
    $H_2SO_4$ and $NH_4^{+}$
  • D
    $H_2SO_4$ and $NH_2^{-}$

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