The correct answers to this question are that the United States and France had been allies for more than 150 years; and if Vietnam fell to Communism, its neighbors, Laos and Cambodia, might fall too.
The Vietnam War and all the previous revolutionary process (which includes the war between Vietnam and France) must be understood as part of the Cold War, which confronted communism and capitalism.
France was, together with Great Britain, the main ideological ally of the United States on the capitalist side. On the other hand, the relations with France had been of collaboration from the same War of Independence of the United States (with some exceptions, like the Quasi-War). The United States had been the main collaborator of France in the Second World War, which was an event that had strengthened this relationship between both countries.
In addition, the Cold War posed the threat of communism. This had spread in Eastern Europe and Asia, thanks to the influence of the Soviet Union and China. Each new revolution that began was a threat to the system defended by the United States. In this context, the rise of Vietnam as a defender of communism, coupled with the influence that this revolution could have in neighboring countries of Southeast Asia, caused the United States to support France in the conflict and subsequently, the American Armed Forces entered directly in combat.
I believe that the first one is A because Historiography means the study of history.
Explanation:
The legal of opinions and laws of the Roman Empire where compiled (termed as Justinian code) and used by the leaders that made it clear that all the Power of the area would be centralized and would come under the centralized legal system. This opinion is being used politically at many places throughout the world. Justinian code has made a major legal impact in many civil laws that are being followed by countries today.
The correct answer is A. Featured traveling preachers that drew large audiences.
Explanation
The First Great Awakening was a Christian revitalization movement of European origin that spread through the North American colonies between the years 1730 and 1740. This movement was characterized by distancing itself from traditional religious rituals and ceremonies while being based on redemption, introspection, and the personal conviction of religion causing the feeling of personal revelation of the need for salvation through Jesus Christ. This religious diffusion was given thanks to itinerant preachers who toured most of the American colonies and influenced a large part of the settlers. So the answer is A.