Which statement best describes a situational crisis?

A situational crisis is characterized as a sudden and often unexpected event that significantly disrupts an individual's normal functioning. This type of crisis can arise from various life events such as job loss, sudden illness, divorce, or other profound changes that can cause overwhelming stress or distress. The emphasis is on the unexpected nature of the event, which differentiates it from more prolonged or developmental issues such as those suggested in other choices.

When evaluating the context of the other options, long-term emotional immaturity pertains more to ongoing psychological development rather than a crisis precipitated by a specific event. The requirement of therapy to resolve, while sometimes applicable, is not a defining characteristic of a situational crisis, as some individuals may cope without professional help. Finally, the assertion that it only affects children and adolescents is misleading; situational crises can impact individuals across all age groups, demonstrating the broad reach of such experiences. Therefore, the statement that it arises from unexpected life events accurately captures the essence of a situational crisis.