Answer:
B) The Metal A ion is reduced and Metal B is oxidized.
Step-by-step explanation:
When we think of electroplating, we often think of a set up in which there is a nonsponteanous reaction driven by the presence of a cell.
However, in displacement plating, a cell is not involved. Metals are chosen based on their respective position in the electrochemical series.
For instance, silver can be coated on copper by immersing the copper rod into a silver ion solution. The copper rod becomes oxidized. The silver ions accept electrons and become deposited on the copper rod.