What suggestion presented in your textbook for using supporting materials is used in the following speech excerpt?
Since it first opened for business, McDonald's has sold more than 100 billion hamburgers. To give you an idea how many hamburgers that is, think of it this way: Since each McDonald's burger (with the bun) is about 2 inches thick, 100 billion hamburgers stacked on top of each other would reach over 3 million miles⎯fifteen times as far as the moon.
a. Explain your statistics.
b. Present testimony from qualified sources.
c. Use examples to quantify ideas.
d. Quote or paraphrase accurately.

Statistics is the based on the study of collection of data and presentation of data in an organized way. Statistics in the speech is done through collecting facts on research. By bringing in the statistics into the speech it has the context and the credibility of the speech can be done effectively.

Statistics can prove the realism in the speech and it has emotional impact on the audience. Statistical figure is 100 million hamburger which is 3 million miles that is fifteen times as far as moon these create a memory for the audience and they remember it for a long time.