Answer:
Opinion Leader.
Explanation:
Opinion Leader: They can be individual or organization who has the ability to influence people´s choices, belief, etc, They are expert and have a vast knowledge of the specific domain. They have built credibility over the period of time by their work. These individuals can be from any field or department.
In the given case, Olivia is intelligent and outgoing leader. Students in the marketing degree program look for her advice in the range of academic and professional issues. Therefore, it is evident that she is expert in her field and she is an opinion leader.
