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To precipitate Ba²⁺(aq) from solution, one could add:
A. NaCl(aq)
B. (NH₄)₂CO₃(aq) in NH₃(aq)
C. HCl(aq)
D. H₂S(aq) in NH₃/NH₄⁺(aq)
E. H₂S(aq) in 0.3 M HCl(aq)