Answer:
The correct answer is homeostasis.
Explanation:
In the given case, it is mentioned that a kid named Jim has spent a hot summer day playing football with his friends. His body was sweating profusely in order to maintain the body temperature, that is, by losing water so that the body cools down. However, when he went in an air-conditioned room his body got cooled down automatically. This natural phenomenon of the body to sustain the temperature of the body is known as homeostasis.
