Answer: Option B
Explanation:
The sodium pump is used to control the osmolarity of the cell by pumping the sodium ions out of the cells that have diffused inside the cells due to their high electrochemical gradient.
This pump plays an important role in the neurons and helps in initiating the action potentials.
This pump helps in the signals transduction from brain to various parts of the body.
Hence the correct answer is that this" Pump Na+ out of the cell".
