Which of the Following Is a Consequence of the Activity

Multiple Choice

Which of the following is a consequence of the activity of the sodium-potassium transporters?

A) Extracellular sodium concentrations are kept low.
B) Intracellular sodium concentrations are kept very high.
C) Extracellular potassium concentrations are kept very high.
D) Intracellular sodium concentrations are kept low.
E) Little energy is required to maintain ionic differences across the membrane.