Final answer:
The word 'capricious' relates to being impulsive, not stable. Authoritarian leadership involves top-down communication, while expressive leadership focuses on morale, with the director of a summer camp for the ill being a potential example. High neuroticism suggests instability, not stability.
Step-by-step explanation:
The word capricious implies a tendency to make sudden or unpredictable changes, which does not describe someone who is stable. Among the options provided, impulsive is the word closest in meaning to capricious, as both refer to a tendency to act on whims or without careful thought.
Type of group leadership with a communication pattern that flows top down is known as authoritarian leadership. An expressive leader, on the other hand, is someone who focuses on group well-being and morale, and is likely to be someone like the director of a summer camp for chronically ill children. As per the Eysencks' theory, individuals who score high on neuroticism are not described as stable; they tend to be more emotionally unstable. The advantages of a single executive as outlined could be statements B and C, that one man could respond to crises more quickly and it was easier to control one man's actions.