The correct answer is B. Anticipate questions.
Step-by-step explanation:
In some communicative situations including presentations, it is common the main audience does not only listen to a message but also participates by expressing opinions, providing feedback or asking questions. In the case of Anabella, she has forgotten her audience can also participate by asking questions and due to this she has not anticipated or considered possible questions from the audience; as a result, Anabella does not know how to answer the question from an audience member and communication issues emerge. According to this, it is anticipating questions the principle Annabella forgot.