Biases or prejudices of the sender–receiver are examples of what kind of noise?

A young man who is new to public speaking wants to do everything he can to rehearse effectively. What technique should he try that has been shown to greatly help speakers rehearse?

a. make a mental list of all his flaws b. tape or videotape himself c. practice alone rather than with an audience d. use a microphone

Sarcasm requires a conflict between the verbal and nonverbal messages being sent

a. True b. False