The correct answer is B. They are only used by students in high school
Explanation:
Outlines are plans or summary that are part of the process of writing including different types of academic papers such as essays or research reports. Outlines facilitate writing by summarizing the main points or essential information and play an important role in writing processes including those of research. However, as the creation and use of outlines is linked to the writing process and academic papers, this tool is not only used by students in high school, but use in almost any other educational level such as college, university or master programs, and not only by students but by anyone interested in writing including people who write stories, novels or any other kind of paper and want to organize their ideas. Thus, the one that is not true about outlines is "B. They are only used by students in high school" as the use of outlines does not limit to high school education or to students.
