I suggest either talking or emailing the person grading the exam or someone who could help you.
Well if all you need is a website to go to, then here is a great source.
http://www.aacc.nche.edu/Resources/aaccprograms/diversity/brownvboard/Pages/supremecourt.aspx
Answer:
Unifies the story
Explanation:
The main idea is what makes up the story
