In the extraction of aluminium metal, one of the process is summarised as follows :

Options

A. `{:(" "I,II,III," "IV," "V),(NaOH,Al^(3+),HF,Na_(3)AlF_(6),"Cathode"):}`
B. `{:(" "I,II,III," "IV," "V),(NaOH,NaAlO_(2),CO_(2),NaF,"Anode"):}`
C. `{:(" "I,II,III," "IV," "V),(H_(2)SO_(4),Al_(2)(SO_(4))_(3),NH_(3),Na_(3)AlF_(6),"Cathode"):}`
D. `{:(" "I,II,III," "IV," "V),(NaOH,NaAlO_(2),CO_(2),Na_(3)AlF_(6),"Cathode"):}`

Answer

D