When you need to make sure an audience has the information necessary to understand the body of your speech, your preview statement in the introduction might include a(
a. definition
b. credibility statement
c. statistical statement
d. all of the above
e. a and c only

A. definition

Explanation:

A definition is a simple statement that describes or explains a point or information. Here, it has been stated that you need to make sure that the audience has the appropriate information which is necessary to understand the body of your speech. Hence, you must be including a definition at the beginning of the speech or presentation or in the introduction for the audience.

buildings sir and respect

world war i had a devastating effect on german-americans and their cultural heritage. up until that point   german-americans, as a group, had been spared much of the discrimination, abuse, rejection, collective mistrust experienced by so many different racial and ethnic groups in the history of the united states. indeed, over the years, they had been viewed as a well integrated and esteemed part of american society. all of this change with the outbreak of war.