Option B- Decrease- if a cell is placed in a hypertonic solution , then water will flow from inside the cell to outside , this will decrease the concentration of water molecules inside the cell . Hence , when the water moves out , the water potential decreases.

What is the water potential of a hypertonic solution?

Hypertonic solutions mean there is a higher amount of solutes in the water, meaning a lower water potential. In other words, the extracellular fluid has a higher osmolality than the cells cytoplasm (hyper means greater than).

Does a hypertonic solution have a high water potential compared to the cell?

A hypertonic environment has a low water potential compared to a cell. Hypertonic means a very negative number. High solute concentrations result in a very negative s value, which means an overall negative number.