Dressing professionally, being poised as you speak, and citing credible evidence all convey ____________.

The top male star of the 1930s was

a. James Dean. b. James Stewart. c. Charlie Chaplin. d. Clark Gable.

An audience member is worried about an upcoming exam and is unlikely to remember much of what the speaker says. This is a type of _____ noise.

A. external B. internal C. physical D. educational