I would say the correct answer is that has an undetermined answer.
If a subject has been thoroughly covered, then there is no need for this researcher to do it all over again. If it's impossible to answer, there is no need to try. If it can be answered easily, then it doesn't really require a research. This leaves us with the last option, because a researcher might want to try and determine the answer.
Without proper hygiene dogs can become matted and sick,just the same as any other human.
The point of view it will be written in (first, second, or third person), the story line (what the piece will be about), and weather it will be nonfiction or fiction (will you provide facts, dates, etc. or thoughts and opinions.)
