Akey factor of the empires the united states and european countries built in the late 1800s was:

The correct answer is D) nationalism.

A key factor of the empires the United States and Great Britain built in the late 1800s was nationalism.

The ideology that considers that people had to be devoted to his nation is called Nationalism. This term indicates that individuals profess extreme love and respect for their country and that the benefit of the nation is above all other interests.

For the United States, the Manifested Destiny, a great Nationalistic concept, drove the imperialistic and expansionistic deeds to gain more territory such as the annexation of California, Arizona or New Mexico. The case of the British is similar, nationalistic ideas made them sent explorers to colonize new lands to increase the territories and richness of the English crown.

The other options of the question were a) totalitarianism, b) patriotism, and c) chauvinism.  

b.

explanation:

he is racist

"oh, lets coppy china and build a great wall around bla bla bla.that way,we wont lose out to other countries." in the end, he did not build anything

soviet influence spread across eastern europe sharply during and after wwii. the soviet armies liberated the countries in eastern europe and occupied them from the germans as they were forced to retreat towards germany.