The Na+/K+ pump generates a membrane potential across the plasma membrane (PM) of the cell by transporting Na+ and K+ across the PM. The action of this pump results in the cell having a slightly charge inside the cell compared to the extracellular space.

Explanation:

The sodium-potassium pump transports sodium out of  the cell and potassium into the cell through plasma membrane. In each cycle, 3 sodium ions exit the cell, while 2 potassium ions enter. For every three ions of sodium that move out of the cell, only two ions of potassium move inside the cell, resulting in a more negative charge inside the cell interior. This generates membrane potential.

since there are no options posted i'll give you a few examples.

a dolphin's flipper, bird's wing, cat's leg.