In Which Aqueous Solution Would the Smallest Amount of Barium

Multiple Choice

In which aqueous solution would the smallest amount of barium sulfate dissolve?

A) 0.1 M Mg(OH) ₂
B) 0.1 M Na₂SO₄
C) 0.1 M Al₂(SO₄) ₃
D) 0.1 M Ba(NO₃) ₂
E) 0.1 M HCl