What will be the conjugate bases for the following Bronsted acids?

$\mathrm{HF},{\mathrm{H}}_2{\mathrm{SO}}_4\text{ and }{\mathrm{HCO}}_3^{-}$

• A

  ${\mathrm{F}}^{-},{\mathrm{SO}}_4^{2-}\text{ and }{\mathrm{CO}}_3^{2-}$

• B

  ${\mathrm{F}}^{-},{\mathrm{SO}}_4^{2-}\text{ and }{\mathrm{H}}_2{\mathrm{CO}}_3$

• C

  ${\mathrm{F}}^{-},{\mathrm{HSO}}_4^{-}\text{and }{\mathrm{H}}_2{\mathrm{CO}}_3$

• D

  ${\mathrm{F}}^{-},{\mathrm{HSO}}_4^{-}\text{and }{\mathrm{CO}}_3^{2-}$