In Which of the Following Circumstances Would It Be Appropriate

Multiple Choice

In which of the following circumstances would it be appropriate to use functional headings (rather than informative headings) ?

A) Your readers are pressed for time and need to grasp information as quickly as possible.
B) You want to defuse emotions concerning sensitive issues.
C) You're writing a report for which no set format exists.
D) Your paragraphs are vivid enough to stand on their own.