What mode of persuasion derives from the character and reputation of the speaker?

Joseph Walther suggests that hyperpersonal communication is unlikely to improve relationships between groups with a strong history of tension and conflict.

a. true b. false

What is the primary drawback to using objects for visual aids?

a) Objects are low-tech and not very impressive. b) Most objects are too large to be manipulated or too small to see. c) Objects are useful in training sessions, but not for informative presentations. d) All of these answers are correct.