Which describes the purpose of a prewriting document?
a. it allows you to generate ideas for writing.
b. it is a list of words related to what you're writing about.
c. it is the first draft of a piece of writing.
d. it is a paragraph in which you write down ideas about your topic.

According to the Wikipedia source Prewriting can consist of a combination of outlining, diagramming, storyboarding, clustering (for a technique similar to clustering, see mindmapping).

So a first draft is NOT pre-writing, nor is a paragraph. The list of words is just one way to create ideas.
So your compadre gave you good advice! Letter A!

سنسهثن سهصرصحصنث خصصمنصنمنيت ميرسزسرسسهس س صكص صصهصز صصمصزص ص صوصكصرصصزنصص. مصصرصرث. ص ص سكض ش شنش‘ش شهشمشمشمش

= I hope it help