Give the electrolytic reactions of molten $NaCl$ occurring at inert electrodes.
- ACathode: $Na^+ + e^- \longrightarrow Na$; Anode: $2Cl^- \longrightarrow Cl_2 + 2e^-$
- BCathode: $2H_2O + 2e^- \longrightarrow H_2 + 2OH^-$; Anode: $2Cl^- \longrightarrow Cl_2 + 2e^-$
- CCathode: $Na^+ + e^- \longrightarrow Na$; Anode: $2H_2O \longrightarrow O_2 + 4H^+ + 4e^-$
- DCathode: $2H^+ + 2e^- \longrightarrow H_2$; Anode: $2Cl^- \longrightarrow Cl_2 + 2e^-$
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