Answer:
Option A: high; social; low; human.
Step-by-step explanation:
Social capital is referred as an interpersonal relationship which have shared sense of understanding, identity, trust, value, cooperation and norms. According to Billy career is thriving due to this social capital because despite failing in his academics or academic setbacks he is the Board of director of two corporation and is part of government committees, this shows that what is his reputation in the society and this explains his performance with diverse groups because he has shared interest, identity, values, trust with the diverse groups.