The following passage from a speech introduction is an example of .
After attending a seminar on currency security, I became fascinated by the technology developed by the Treasury Department to prevent the counterfeiting of paper money. I learned more about the subject by reading information from the Treasury Department, as well as by interviewing Donna Marshall, a security expert at Bank of America.
a. revealing the topic
b. previewing the body
c. stating the importance of the topic
* d. establishing the speaker’s credibility
e. relating to the audience