For her preview statement in a speech on credit card debt, Michelle said, "I have struggled, as I'm sure others in this group have, with credit card debt, and that is what I wish to speak about this morning. Credit card debt is one of the major problems facing the American consumer today. According to government sources, the credit card delinquency rate (that is, the percentage of credit card holders more than 90 days late in their payments) has risen 15% this year." Which of the following is a typical function of a preview statement that Michelle did not provide?