Kareem gathered facts, examples, definitions, and quotations for his speech. These are all types of __________.

Kareem's collection of facts, examples, definitions, and quotations serves as supporting materials for his speech. Supporting materials are essential components that enhance the content and credibility of the speaker's message. They provide evidence and context, helping to substantiate the main ideas presented in the speech while also engaging the audience. By using a diverse array of supporting materials, such as facts to inform, examples to illustrate, definitions to clarify concepts, and quotations to lend authority or perspective, Kareem can create a more compelling and persuasive presentation. This diverse range of materials not only aids in effectively conveying his message but also helps the audience understand and relate to the topic more fully.