You should consider where your going to put it and what your going to do if you succeeded. And whats going to go on the trap to catch whatever it is your trying to catch
I think it would be A because the others don't really make sense to me.
When writing it is very important to (D) know your audience and subject before writing an outline. Because in your outline you will list the topics that you are going to write about. So it is important to know your audience and subject beforehand because it will allow you to form a succinct outline so that you can move onto your first draft.