Three faradays of electricity are passed through molten `Al_2O_3` aqueous solution of `CuSO_4` and molten `NaCl` taken in deffernt electrolytic cells. The amout of `Al,Cu` and Na deposited at the cathodes will be in the ration of .
A. 1 mole: 2 mole: 3 mole
B. 1 mole: `1.5` mole:3 mole
C. 3 mole: 2 mole: 1 mole
D. 1 mole: `1.5` mole: 2 mole