In which model are sending and receiving messages simultaneous and mutual?

A credible speaker is

a. one whom the audience sees as a believable and competent. b. one who has a magnetic stage presence and quick wit. c. always the top-most authority on the subject at -hand. d. always has several decades of speaking experience

Seditious speech is defined as any written or spoken statement that undermines the power and authority of a government.?

a. True b. False