What is the definition of stress?

The definition of stress as an individual's internal response to, or evaluation of a demand that arouses negative feelings captures the essence of stress as a psychological and emotional phenomenon. This definition highlights that stress is not solely about external factors but also involves how an individual perceives and reacts to those factors. Stress arises from an individual’s assessment of a situation, particularly when they feel that the demands placed upon them exceed their ability to cope, leading to feelings of anxiety, tension, or conflict.

An understanding of stress also involves recognizing that it is subjective, which means that what may be a stressor for one person may not be for another; thus, the internal response is key. This personal interpretation of events and demands is essential when considering how stress can vary significantly from one individual to another based on their experiences, coping mechanisms, and emotional resilience.

The other options present varying nuances about stress but tend to deviate from the core aspect of its definition. For instance, while acknowledging that stress can be a consequence of actions or influenced by individual differences is important, these interpretations do not succinctly capture the immediate personal response or appraisal that defines stress. Consequently, option A provides the most accurate and comprehensive understanding of what constitutes stress.