Final answer:
Albert Ellis posited that people's emotional reactions to events are primarily caused by their beliefs about the events. Cognitive appraisal is an integral component, and this perspective aligns with cognitive theories of emotions.
Step-by-step explanation:
According to Albert Ellis, people's emotional reactions to life events result mainly from their beliefs about events (B). This is based on the cognitive theory of emotions, which emphasizes the role of cognitive appraisal in the emotional process. The way individuals interpret and think about an event affects their emotional reactions. Emotions are subjective experiences involving physiological arousal, cognition, and subjective feeling. Various theories such as James-Lange, Cannon-Bard, and Schachter-Singer provide different explanations for the interaction of these components. Nevertheless, cognitive appraisal is a significant aspect, as highlighted by theorists like Lazarus and Ellis. It is through cognitive appraisal that individuals determine how an event affects them, which in turn shapes their emotional response.