On Her Way to Public Speaking Class,Delaney Decided to Add

On her way to public speaking class,Delaney decided to add one last visual aid to her speech.Was this a good idea,according to your book?

A) Yes;the more creative the visual aids,the better the speech will be.
B) Yes;if Delaney were certain that the visual aid would make a difference.
C) No;because Delaney didn't have a chance to rehearse with the new aid.
D) No;because the extra visual aid would make Delaney's speech run over time.