If you'll be presenting to an audience that doesn't know you,

A) there isn't much you can do to build your credibility.
B) present your qualifications at the end of your talk.
C) build your credibility as you deliver your presentation.
D) introduce yourself and note your relevant experience and accomplishments.

D
Explanation: D) If you have no working relationship with your audience, you need to establish your credibility and do so quickly.