Grace Knew Her Speech Backwards and Forwards

Grace knew her speech backwards and forwards. She rehearsed it over and over, timing it to make sure she didn't run over the time limit. When she actually delivered the speech, she found herself muchlessnervous and much more confident than she expected to be. Which guideline for developing confidence provided in your text applies here?

A) Act calm to feel calm.
B) Be prepared.
C) Re-create the speech environment when you rehearse.
D) Know your audience.