Stressors that affect a single person and produce an immediate major reaction are known as a. Personal stressors b. Psychic stressors c. Cataclysmic stressors d. Daily stressors

Stressors are characterized based on their frequency, predictability, controllability, and how much impact they have. The options provided represent different kinds of stressors, each having distinct features. Recall the definitions of each type:a) Personal stressors: These are stressors that are directly related to an individual's personal life like relationship issues, job change etc. b) Psychic stressors: This term is not typically used in the classification of stressors, making it incorrect. c) Cataclysmic stressors: These are sudden, unpredictable, and not controllable events that cause stress. They are rare and can impact multiple people, not just one. However, when it happens to one person, it can produce an immediate major reaction. d) Daily stressors (or hassles): These are common occurrences that provoke moderate to low stress, like daily commutes or disputes at work etc. They are repetitive and frequent, but the reaction to them is not immediate and major.

According to the question, we are looking for a stressor that affects a single person and causes an immediate major reaction. Among given options, 'cataclysmic stressors' are most suitable. Even though these are typically incidents like earthquakes or major accidents that affect many more than one person, they can also occur on a personal level like experiencing a personal trauma

Based on the definitions and requirements of the question, option c, Cataclysmic stressors, appears to be the correct answer. Such stressors can produce a major immediate reaction in an individual.