While Drew gave directions to his employee Tom, Tom nodded, looked him in the eye, and smiled. This is an example __________ communication

According to one research study, as a student, the amount of time you spend preparing your speech is one of the best predictors of

a. your level of speaking experience. b. whether you will continue in the field of public speaking. c. the grade you receive. d. your perceived credibility and charisma.

Canadian inventor ________ developed the liquid barretter in 1903, making possible the radio reception of voices.

A. David Sarnoff B. Reginald Fessenden C. Lee DeForest D. Thomas Edison