When Copper Is Refined Using Electrolysis, Which Process Occurs

Multiple Choice

When copper is refined using electrolysis, which process occurs?

A) Impure copper goes into solution at the anode, and pure copper plates out on the cathode.
B) Impure copper goes into solution at the cathode, and pure copper plates out on the anode.
C) Pure copper goes into solution from the anode and falls to the bottom of the tank.
D) Pure copper goes into solution from the cathode and falls to the bottom of the tank.
E) Pure copper on the bottom of the tank goes into solution and plates out on the cathode.