Stress is the feeling of tension and pressure; the source of that stress is known as a(n) _____.

• A. adaptation
• B. coping mechanism
• C. stressor
• D. resilience factor

Answer: (C)

Verified step by step guidance

1. Understand the definition of stress: it is the feeling of tension and pressure experienced by an individual.
2. Identify that the problem asks for the term used to describe the source or cause of stress.
3. Recall key psychological terms related to stress: 'adaptation' refers to how one adjusts to stress, 'coping mechanism' refers to strategies used to manage stress, and 'resilience factor' refers to traits that help withstand stress.
4. Recognize that the term specifically naming the source or trigger of stress is 'stressor'.
5. Conclude that the correct answer to fill in the blank is 'stressor', as it directly refers to the cause of stress.