Her skin exchanges oxygen and carbon dioxide. Her skin produces red blood cells. Her skin releases hormones. Her skin discharges water.
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: Isabel goes jogging for two miles on a sunny afternoon. At the end of her run, she is warmer. As Isabel jogs, which function does the skin perform to help stabilize her body temperature?
Possibilities:
- Her skin exchanges oxygen and carbon dioxide.
- Her skin produces red blood cells.
- Her skin releases hormones.
- Her skin discharges water.

Her skin discharges water.