Problem: In the reading "New York Puerto Ricans," the author shows that both African Americans and Puerto Rican parents were unsatisfied with the lack of response from school officials to desegregates schools. As a result, they turned to a historical strategy to demand for their rights. This strategy is called:
a. Withdrew their children from schools
b. Organized a school boycott
c. Marched in front of City Hall
d. All of the above