Which of the following reactions takes place at the anode during the electrolysis of molten $NaCl$?

• A
  $Na^+_{(l)} + e^- \rightarrow Na_{(l)}$
• B
  $Na_{(s)} \rightarrow Na^+_{(l)} + e^-$
• C
  $Cl_{2(g)} + 2e^- \rightarrow 2Cl^-_{(l)}$
• D
  $2Cl^-_{(l)} \rightarrow Cl_{2(g)} + 2e^-$