Which is the set of amphoteric species compounds?

• A

  ${\mathrm{H}}_3{\mathrm{O}}^{+},{\mathrm{H}}_2{\mathrm{PO}}_4^{-},{\mathrm{HCO}}_3^{-}$

• B

  ${\mathrm{H}}_2\mathrm{O},{\mathrm{HPO}}_4^{2-},{\mathrm{H}}_2{{\mathrm{PO}}_2}^{-}$

• C

  ${\mathrm{H}}_2\mathrm{O},{\mathrm{H}}_2{\mathrm{PO}}_3^{-},{{\mathrm{HPO}}_4}^{2-}$

• D

  ${\mathrm{H}}_2\mathrm{CO},{\mathrm{H}}_2{\mathrm{PO}}_4^{-},{{\mathrm{SO}}_4}^{2-}$