A Good Speaker Has Strategies for Using the Introduction of a Speech

A good speaker has strategies for using the introduction of a speech to appeal to listeners and involve them in the presentation. Which of the following would be an effective strategy to involve listeners in a presentation.?

A) Explain all of your qualifications, so that the audience knows they are listening to an expert.
B) Use coloured paper for your handouts.
C) Outline all the points that you will be covering in your presentation, so the audience can look forward to what they will be learning.
D) Open with a question that requires the audience members to raise their hands.