Question

physical activity stimulates the release of _______, which are natural mood enhancers. anaerobics antibodies endorphins immunities

Explanation:

Endorphins are natural mood - enhancing chemicals released during physical activity. Anaerobics refer to a type of exercise, antibodies are part of the immune system for fighting pathogens, and immunities are the body's ability to resist diseases.

Answer:

C. endorphins