Which of the following is an example of possible noise in public speaking:
a. members of the audience coughing or moving about in their seats
b. a malfunctioning microphone making the speaker difficult to hear
c. a member of the audience losing interest and daydreaming about her upcoming vacation
d. all of the above are examples of noise in public speaking.

Question: Which of the following is an example of possible noise in public speaking:  

Options:

a. members of the audience coughing or moving about in their seats  

b. a malfunctioning microphone making the speaker difficult to hear  

c. a member of the audience losing interest and daydreaming about her upcoming vacation  

d. All of the above are examples of noise in public speaking.

The correct answer is option A. members of the audience coughing or moving about in their seats.

Explanation: The act of coughing or moving in one's seat, creates noise, but a malfunctioning microphone makes the speaker difficult to hear, however it does not cause a noise. A member of the audience losing interest and daydreaming about her upcoming vacation does not mean that she or he is making noise. This person is simply caught in a daydream, lost in her or his own thoughts and fantasy’s. The only sentence that expresses noise is letter A, because it mentions two noisy actions: Coughing and moving.