Copper is purified by electrolytic refining of Blister copper.  The correct statement(s) about this process is (are)

During  purification of copper by electrolytic refining of blister copper:

• Impure Cu strip (blister copper) is used as anode whereas pure Cu strip is used as cathode. Hence, the option (A) is incorrect.
• The electrolyte used is acidified aqueous copper sulphate solution. Hence, the option (B) is correct.
• Pure Cu transfers from anode to cathode and deposits at cathode. Hence, the option (C) is correct.
• Impurities like Fe, Zn, Ni, Co etc. dissolve in the solution as sulphates and others like Au and Ag settle as anode-mud. Hence, the option (D) is correct.