Answer:
a category of stressors
Step-by-step explanation:
In health, a stressor is anything that cause stress hormones. They can be physiological and psychological stressors according to the Centre for Studies and Human Stress (CSHS).
Physiological stressors are those that put strain one the body, which can me felt like extreme temperatures or injuries.
Psychological stressors represent situations from which we interpret some risk, danger and threatening. Basically, situations that make us to worry release stress hormones.
The release of stress hormones represent a catastrophe to our body, causing health risk when they become chronicle, because they can affect heartbeats, or the functions of other hormones.
Therefore, the right answer is the last one.