Using Detailed, Well-Planned Outlines Has the Following Main Advantage

Using detailed, well-planned outlines has the following main advantage

A) once an outline has been created, the writer no longer has to insert transitional phrases or paragraphs.
B) detailed outlines help writers save time at each stage of the writing process.
C) outlines provide a fixed structure, so that no new material can accidentally be inserted.
D) detailed outlines provide the structure that allows technical writers to be creative.