$8g$ of sulphur are burnt to form $SO_2$,which is oxidized by $Cl_2$.The solution is treated with $BaC_2$ solution.The amount of $BaSO_4$ percipitated is

Question

$(a)\;1.0mole\qquad(b)\;0.5mole\qquad(c)\;0.75mole\qquad(d)\;0.25mole$