According to the text, what is the term for "repeatedly practicing a new response to a stimulus until it replaces a former response"?

Which of these statements provides the best example of a “barriers to entry” issue?

a. ?the inability of controversial producers to gain access to the airwaves b. ?the high costs of establishing or acquiring media firms c. the difficulty of gaining access to production facilities because of increased security ? d. ?a way of describing the impact of ideology on the audience

A problem solving discussion in front of an audience is a ________________.

a. town hall meeting b. panel discussion c. symposium d. None of the choices is correct.