Which emotion indicates the degree to which others can arouse reactions through non-verbal cues?

The correct choice highlights the concept of arousal as a response to non-verbal cues exhibited by others. Arousal in emotional contexts refers to the level of physical and emotional activation that someone experiences. Non-verbal cues, such as body language, facial expressions, and tone of voice, can significantly influence how someone feels and reacts in a social situation. This reaction can range from calm to highly agitated, depending on the intensity and type of non-verbal signals received.

In this context, the degree of arousal reflects how effectively these cues can elicit emotional responses in individuals, which is critical in understanding interpersonal dynamics and communication. Familiarizing oneself with the nuances of emotional arousal can enhance one's ability to interpret and respond to non-verbal signals effectively, an important skill in various leadership and teamwork scenarios.