Perspiration rids the body of excess water. Perspiration eliminates bacteria from the skin. Perspiration opens skin pores to absorb more oxygen. Perspiration helps to maintain a stable body temperature.
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: Which statement best describes the primary role of perspiration in humans?
Possibilities:
- Perspiration rids the body of excess water.
- Perspiration eliminates bacteria from the skin.
- Perspiration opens skin pores to absorb more oxygen.
- Perspiration helps to maintain a stable body temperature.

Perspiration helps to maintain a stable body temperature.