What happens when sodium sulphate solution is mixed with the solution of barium chloride?

Question

$\begin{array}{1 1} \text{(a) Barium sulphate is formed} \\ \text{(b) Sodium sulphate is formed} \\ \text{ (c) Sulphur dioxide gas is formed} \\ \text{(d) No reaction takes place} \end{array} $