Which option best completes the diagram?

A. Government attention to the many issues of the 1960s inspired people to work more closely with politicians.
B. Citizens in the antiwar and civil rights movements ran for office and worked closely with interest groups.
C. The prosperity of the post—World War II era created more jobs for lobbyists in Washington.
D. Antiwar activists, among others, sought new ways to express their views to the government.