Aluminium oxide may be electrolysed at \[1000{}^\circ C\] to furnish aluminium metal (At. Mass = 27 amu; 1 Faraday = 96,500 Coulombs). The cathode reaction is - \[A{{l}^{3+}}+3{{e}^{-}}\to Al\] To prepare 5.12 kg of aluminium metal by this method we require electricity of

• A. \[5.49\times {{10}^{1}}C\]     
• B. \[5.49\times {{10}^{4}}C\]
• C. \[1.83\times {{10}^{7}}C\]      
• D. \[5.49\times {{10}^{7}}C\]