A topic outline usually lists the words and phrases relevant
to what you’re about to craft. A topic outline also
organizes your ideas in a hierarchical manner (arranging the main topics
and the sub-topics), in the exact sequence that you want. It also briefly
outlines what you are going to talk about.
The closest answer could be letter A. It provides the topic
sentences for your paragraphs
A topic sentence shows the main idea of the entire paragraph.
In order to keep the text cohesive, your topic sentence should be in sync with
your topic outline.