Interviewing a communication student to find out what needs to be improved in the college's communication department is a way of using a layperson or peer as a source

Which of the following is an example of a speech with the general purpose "to inform?"

a. a television advertisement b. a sermon c. an after-dinner speech d. a class lecture

Once you have signposted and stated the main idea, you must _______ it

Fill in the blanks with correct word