What Advice Does Your Textbook Give for Practicing Speech Delivery

What advice does your textbook give for practicing speech delivery?

A) Concentrate on gaining control of the ideas instead of learning the speech word for word.
B) Practice your speech in front of a mirror to check for eye contact and distracting mannerisms.
C) Put delivery cues on your speaking outline to remind you where to pause, slow down, and the like.
D) all of the above
E) a and c only