If I am exploring the extent to which an audience shares common experiences among their peers, I am probably assessing the demographic variable of

The author suggests that to empower your speaking, you should avoid self-critical statements because

A) they make you sound unprepared. B) they signal low social class and hence little power. C) they signal a lack of confidence and make public your sense of inadequacy. D) they make your speeches all sound the same.

Which of the following is an example of image media?

A. radio B. movies C. photography D. Internet