Calculate the solubility (in g/L) of CaSO₄(s) in 0.25M Na₂SO₄(aq) at 25°C. The Ksp of CaSO₄ is 4.93 x 10(⁻⁵).
A) 4.38 x 10(⁻63) g/L
B) 8.76 x 10(⁻63) g/L
C) 1.32 x 10(⁻²) g/L
D) 1.75 x 10(⁻²) g/L