A 0.15 M Solution of BaCl₂ Contains

A 0.15 M solution of BaCl₂ contains:

A) 0.15 M Ba²⁺ ions and 0.15 M Cl^- ions.
B) 0.15 M Ba²⁺ ions and 0.30 M Cl^- ions.
C) 0.30 M Ba²⁺ ions and 0.15 M Cl^- ions.
D) 0.30 M Ba²⁺ ions and 0.30 M Cl^- ions.
E) none of the above