In which part of a speech should the speaker develop each main point?

A visual aid

a. can provide support for idea. b. can include YouTube videos. c. can include illustrations. d. can include cartoons. e. All of the above.

When groups include people whose experience or training gives them additional knowledge about the subject of specific decisions, the groups may utilize this special knowledge and reach its decisions by deferring to

A. expert opinion. B. unanimous consensus. C. authority rule. D. majority rule.