An example of the body maintaining homeostasis is

A. growing hair

B. shedding skin

C. sweating when hot

D. burping

Homeostasis is about keeping the internal structure of the body stable: growing hair for example produces something, but it is not about keeping the internal state of the body stable.

the correct answer is C. sweating when hot: this brings the temperature of the skin down when it's hot, keeping the temperature of the skin and the organs under the skin stable!