Which of the following anion(s) gives white ppt. with ${\mathrm{CaCl}}_2$ in aqueous solution?

${\mathrm{CO}}_3^{2-}$ and ${\mathrm{SO}}_3^{2-}$anion(s) gives white ppt. with ${\mathrm{CaCl}}_2$ in aqueous solution. 

It is known that ${\mathrm{CaSO}}_4$ is white in colour, ${\mathrm{SO}}_4^{2-}$ is the only anion that may precipitate white with ${\mathrm{CaCl}}_2$.

The reaction is having follows,

${\mathrm{CaCl}}_2+{\mathrm{SO}}_4^{2-}\to \underset{\left(\mathrm{white}\right)}{CaS{O}_4}\downarrow +2{\mathrm{Cl}}^{-}$

Hence, options A, and C are correct.