Answer:
Student Nonviolent Coordinating Committee
Explanation:
Student Nonviolent Coordinating Committee (SNCC), also called (after 1969) Student National Coordinating Committee, American political organization that played a central role in the civil rights movement in the 1960s.
Taking an educated guess here -- I think it would be 1, 3, and 4 which all seem pretty reasonable.
B. manor houses were small and simple they do not protect as much as a castle