The written guide the researcher uses in writing the research paper is the "outline" although it should be noted that researches use many different things for guides.
The correct answer for the question that is being presented above is this one: "c. Five." A student researcher should consult at least five varied sources for an 800- to 1,000-word research paper. It has to make sure that everything is okay and perfect.
Its all right except it should be found instead of founded.