Which factor is closely related to emotional intelligence?

The correct choice highlights that social adaptability is closely related to emotional intelligence. Emotional intelligence encompasses the ability to recognize, understand, and manage one's own emotions as well as the emotions of others. A key component of this is social skills or adaptability, which refers to how effectively an individual can navigate social situations, build relationships, and influence the emotional climate of interactions.

People with high emotional intelligence are often adept at reading social cues, understanding the feelings of others, and adjusting their behavior accordingly. This social adaptability enables them to communicate effectively, resolve conflicts, and foster collaboration, which are all essential skills in both personal and professional contexts.

In contrast, factors like achievement motivation focus more on a person's drive to pursue goals, cognitive factors pertain to intellectual abilities and reasoning skills, and practical intelligence relates to the ability to solve everyday problems using knowledge gained from experience. While these elements can contribute to an individual's overall effectiveness, they do not align as closely with the relational aspect of emotional intelligence as social adaptability does.