Tali has recently joined a sports center as a service assistant. She's asked to set up a phone conference with several people she hasn't met yet. How should Tali begin the meeting to show that she understands professional conduct? O A. She should start off with a joke or a funny story. OB. She should talk about the most recent activities of the sports center. OC. She should introduce herself and explain the purpose of her call. OD. She should ask each person on the call to do a self-introduction.​