A Cell Is Isolated, and Electrophysiology Studies Reveal That the Resting

A cell is isolated, and electrophysiology studies reveal that the resting membrane potential is -70 mV.The predominant intracellular ion is Na⁺, and the predominant extracellular ion is K⁺.With voltage change, which of the following would result in an action potential?

A) K⁺ rushing into the cell
B) Na⁺ rushing into the cell
C) Na⁺ rushing out of the cell
D) K⁺ rushing out of the cell