Consider the writing prompt.
Explain the role that sit-in protests played in advancing the goals of the civil rights movement.
Which research source would be the most relevant source to use to address the prompt?
O a documentary about the civil rights movement in the United States
O photographs of protestors taking part in sit-ins during the civil rights movement
O an article comparing the civil rights movement to other social reform movements
O articles about changes brought about by sit-ins during the civil rights movement