You are in a competitive sport setting and you perceive the environmental demand as very threatening. As such, your state anxiety begins to rise and you begin to notice increased muscletension. This is an example of:

A. Perceptions of the environmental demand

B. Behavior Environmental demand

C. Stress response

D. None of the above

Stress response

Explanation:

Stress response is how the body responds to an emergency situation or a perceived threat. It can also be referred to as "fight or flight" response. When the body senses a perceived threat or a sudden change in environmental demand, it turns on the stress response of the body and this then result to physiological changes such as the release of chemical substance like cortisol and adrenaline, increase in pulse, muscle tension etc.

Therefore the sudden increase in muscle tension as a result of anxiety is an example of stress response.