The stage of writing that you should never skip or skimp on is: prewriting. Option B is correct.
Prewriting constitutes the first stage of the writing process, generally followed by drafting, revision, editing and publishing. Prewriting may consist of a combination of outlining, diagramming, storyboarding, clustering (for a technique similar to clustering, see mindmapping).
Pre-writing strategies utilize writing to generate and clarify ideas.
