Problem:

Question: Which of the following is NOT a characteristic of cardiac membrane depolarization / polarization leading to generation of the action potential?

a. The presence of a large amount of negative charges inside the cell creates a negative resting potential

b. There is a large amount of potassium inside the cells and a lot of sodium outside, creating a membrane potential, which causes opening of Na and K channels, beginning membrane depolarization

c. Along with Na, a large amount of Cl ions also enter the cells, further creating a negative membrane potential

d. In order to restore the resting potential, a Na/K ATPAse removes 3 Na for every 2 K it takes in from the cytosol, leaving less positive charges inside the cell, returning to a negative potential.

Provide the correct answer and justification for your choice.