In the context of public speaking, noise refers only to something that interferes with the ability to hear the speaker's voice.

"You never get a second chance to make a first impression" exemplifies the principle of _______

a. inevitability b. irreversibility c. unrepeatability d. ambiguity

When a high-status leader has a preferred solution, or the group closes itself off to any information contrary to its preference it has become ________.

Fill in the blank(s) with the appropriate word(s).