A metal strip is placed in a blue copper sulfate solution, and the solution gradually turns colorless while a reddish-brown solid forms. Which equation best represents this reaction?

• A. CuSO₄(aq) + Fe(s) → FeSO₄(aq) + Cu(s)
• B. CuSO₄(aq) + Mg(s) → MgSO₄(aq) + Cu(s)
• C. CuSO₄(aq) + Zn(s) → ZnSO₄(aq) + Cu(s)
• D. CuSO₄(aq) + Al(s) → Al₂(SO₄)₃(aq) + Cu(s)

Answer: (C)