Molten $CuCl_2$ is electrolysed using platinum electrodes. The reaction occuring at anode is :

Question

( A ) $Cl_2 (g) + 2e^- \to 2Cl$
( B ) $2Cl^- \to Cl_2 (g) + 2e^-$
( C ) $Cu(s) \to Cu^{2+} + 2e^-$
( D ) $Cu^{2+} + 2e^- \to Cu(s)$