Which of the following describes a strategy used during the prewriting stage of short- story writing

The correct answer for the question that is being presented above is this one: "D. following a story map to stay on track and keep the story line moving forward."

Here are the following choices:
A. making corrections to grammar and spelling
B. revising to ensure the story is interesting
C. free writing to generate ideas for a story’s theme
D. following a story map to stay on track and keep the story line moving forward