At the start of the rising phase of the action potential:
A. Sodium ions are (net) moving into the axon through voltage gated channels.
B. Potassium ions are (net) moving into the axon through voltage gated channels.
C. Sodium ions are (net) moving out of the axon through voltage gated channels.
D. Potassium ions are (net) moving out of the axon through voltage gated channels.
E. A. and D.