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.

the indies

explanation:

because it's pure common sense, google it

option d is correct. corroborated sources of historical evidence   is necessary to validate a claim about an event in history.

historians tend to use written sources, but audio and visual materials as well as artifacts are important objects that supply information to modern historians.

historical sources are usually divided into two categories: primary and secondary sources. depending on the historian's intent, some sources shift their designation. determining what type of sources toimplement, and the level of credibility and reliability of those sources, is a significant step in critical thinking for the historian.

explanation:

d) a constitutional amendment