Answer:
C. to help get ideas and to see if there is enough information
Step-by-step explanation:
A research paper is lengthy with at least 6 pages minimum. You need to make sure that you know what you are going to write about and that you have enough information to use in your research. The worst thing is writing a paper where you run out of information before you reach the minimum number of pages required and then start rambling about nothing.
Hope that helps.