How do ionization energy and electron affinity work together in a galvanic cell?

• A. Both should be low to facilitate electron flow.
• B. High ionization energy at the anode and low electron affinity at the cathode facilitate electron flow.
• C. Both should be high to facilitate electron flow.
• D. Low ionization energy at the anode and high electron affinity at the cathode facilitate electron flow.

Answer: (D)