What they said ^^^^ i was gonna say it but they did !
If we say that outline should make use of subordination, we mean that HEADINGS SHOULD BE GENERAL WHILE SUBHEADINGS SHOULD BE MORE SPECIFIC.
In the writing process, outline helps a writer to logically and systematically arrange his materials. Each outline is expected to observe four basic principles, which are: parallelism, coordination, subordination and division. The principle of subordination requires that, In order to indicate the level of significance, an outline should use a principal and subordinate headings. Thus, materials should be ordered from general to specific.
Answer:
12 months
Explanation:
I mean, I think this is more of a psychology question, but yeah. I believe its around 12 month.