Answer:
Many students find that choosing a topic is a difficult step in the writing process. Brainstorming is a technique used to create a number of topic ideas and eventually narrow the choices down to one topic. Brainstorming can also be used to break down a specific topic into subtopics
C because it always depends on ethos pathos and logos
Hmmm I believe it is colloquialism and social context !! if not I'll update my answer !!