Which one of the following is an encouraging principle about stage fright?

When using stimulus variation, all of the following should be considered except:

a. change the seating arrangement of the participants. b. vary who talks to whom. c. use music at appropriate times. d. avoid silence. e. both a and d.

The audience was confused when Josh's speech talked about the importance of recycling plastic containers, the out-of-control forest fires in the Northwest United States, and three ways to cut grocery costs. Josh's main points seem to lack __________.

A. discreteness B. simplicity C. coherence D. balance