Question

question 1 (20 points)
supporting materials, as they relate to public speaking, are best defined as
materials used by the speaker to prepare the speech but not included in the speech itself.
tools used by the speaker during the speech to stay on track, such as note cards.
any materials you reviewed when preparing your speech, regardless of whether you included them.
the different types of information you use to develop and explain your main points.

Explanation:

Supporting materials in public - speaking are used to enhance and clarify main points. They are the information used to develop and explain what the speaker wants to convey.

Answer:

the different types of information you use to develop and explain your main points.