Complete and balance the following equations. Indicate the type of reaction each equation represents.
Fe + CuSO₄ → ?
A) Fe + CuSO₄ → FeSO₄ + Cu
B) Fe + CuSO₄ → Fe₂(SO)₃ + Cu
C) Fe + CuSO₄ → FeCuSO₄ + O₂
D) Fe + CuSO₄ → Fe₂O₃ + CuSO₃