3 CuSO4(aq)+2Al(s) -->Al2(SO4)3(aq)+Cu(s) is a balanced equation for Copper (II) sulfate + aluminum --> aluminum sulfate+solid copper. The correct answer between all the choices given is the second choice or letter B. I am hoping that this answer has satisfied your query and it will be able to help you in your endeavor, and if you would like, feel free to ask another question.