The correct answer is D. The Cold War was a conflict between the United States and the Soviet Union.
Explanation:
Cold War is the designation attributed to the historical period of strategic disputes and indirect conflicts between the United States and the Soviet Union, comprising the period between the end of World War II (1945) and the extinction of the Soviet Union (1991). It was a political, military, technological, economic, social and ideological conflict between the two nations and their zones of influence. It is called "cold" because there was no direct war between the two superpowers, given the unfeasibility of victory in a nuclear battle.
Lincoln ran on a political platform opposed to the expansion of slavery in the territories. His election served as the immediate impetus for the outbreak of the Civil War.
