FIRST ANSWER GETS increased competition for power among European states and led to imperialism.

A. Ethnocentrism

B. Communism

C. Industrialization

D. Social Darwinism

B

Explanation

Social Darwinism  emerged in Western Europe and North America in the 1870s which applied biological concepts of natural selection and survival of the fittest to sociology.

Communism in Practice Led by Vladimir Lenin, the Bolsheviks put Marxist theory into practice with the Russian Revolution of 1917.

in february 1787, congress decided that a convention should be convened to revise the articles of confederation, the nation’s first constitution. in may, 55 delegates came to philadelphia, and the constitutional convention began. debates erupted over representation in congress, over slavery, and over the new executive branch. the debates continued through four hot and muggy months. but eventually the delegates reached compromises, and on september 17, they produced the u.s. constitution, replacing the articles with the governing document that has functioned effectively for more than 200 years.

four sitting presidents have been assassinated while in office but the first was abraham lincoln,