The answer is D; nationalism. It is known as the support/love for ones own country or a certain country.
Answer:
On the first leg of their three-part journey, often called the Triangular Trade, European ships brought manufactured goods, weapons, even liquor to Africa in exchange for slaves; on the second, they transported African men, women, and children to the Americas to serve as slaves; and on the third leg,
Answer:
Correct answer is It shifted US Policy towards imperialism.
Explanation:
Second option is the only correct as it marked the expansion of United States. United States decided to spread their influence outside American continent, which put them in the line of great imperial forces.
All other answers are therefore wrong, as they are not expressing the attitudes of the American government at the time.