If You Are Introducing a Speaker,you Should

If you are introducing a speaker,you should

A) use an impromptu introduction to create a sense of relaxed informality.
B) show respect to the person you are introducing by looking at them during your remarks.
C) plan an introduction that is at least five minutes long, to allow time to adequately cover the speaker's credentials.
D) practice your introduction enough so you don't have to rely on notes.