The correct option is
B Regulation of body temperature
- Sweating is also called as perspiration. It is the production of fluids secreted by the sweat glands in the skin of a mammal.
- When the body becomes hotter than the normal temperature the sweat glands releases sweat which in turns cools the skin as it evaporates. This helps the lower internal temperature of the body.
- Hence Sweating is meant for Regulation of body temperature.
- So, the correct answer is 'Regulation of body temperature'.