Biology

The correct answer is: B.To regulate osmosis

Explanation:

The cell membrane plays a key role in maintaining homeostasis by regulating the movement of substances, including water, into and out of the cell. Specifically, the cell membrane controls osmosis, which is the movement of water across the membrane from areas of low solute concentration to areas of high solute concentration. This helps maintain proper water balance, preventing the cell from becoming too swollen (lysis) or dehydrated.

The other options are incorrect for the following reasons:

A.To store water: The cell membrane itself does not store wat...