Chemicals are released to indicate thirst. Muscles make lactic acid. Breathing rate increases. Perspiration occurs.
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: Which action by the body best releases heat and cools the body during and after exercising?
Possibilities:
- Chemicals are released to indicate thirst.
- Muscles make lactic acid.
- Breathing rate increases.
- Perspiration occurs.

Perspiration occurs.