.The decomposition of NaCl(l) into Na(l) and Cl2(g) is thermodynamically unfavorable. The decomposition requires the input of energy from an external source. The diagram represents an electrolytic cell that can be used to drive the decomposition reaction. Which of the following identifies a flaw in the representation?
A. Oxidation is occurring at the anode.
B. Molten Na is shown at the cathode.
C. An external source of energy is not shown.
D. The direction of the electron flow in the wires is incorrect.