I think the answer is B, sorry if I'm wrong and that responded so late after you asked.
Answer:
emotional intelligence
Explanation:
Emotional intelligence refers to recognition and managing emotion while interaction. It is not just the ability to understand one's own emotion but it also includes how your behavior affects the emotions of others. It determines how one manages their relationships every day. It has a significant role in our daily life as it helps to deal with problems of daily life.
As per the question, Luke's ability to identify and manage his emotions in a stressful situation reflects his good emotional intelligence.