A speaker referring to David Hume, assuming her audience knows that he was an influential philosopher, is an example of which barrier to listening?

Sam and Woody are both bartenders at a local tavern. The communication between them

would be considered outward. Indicate whether the statement is true or false

Alia, a professor of zoology, wants to use concept mapping for her speech at a seminar. In which of the following situations will that be effective?

a. When there are several related ideas in her topic b. When her speech contains only one central idea c. When there are no specific goal statements d. When her topic is too easy for the audience’s level of understanding