1.Ellis Island (C)
2.Labor unions (E)
3.American Federation of Labor (A)
4.Transcontinental Railroad (D)
5.Homestead Act of 1862 (B)
Answer:
Literary Realism
Explanation:
Writers who belonged to the literary realism movement (such as the ones listed in the question) decided that they wanted to depict life and society as it was in their books. They had a particular interest in the lives of marginalized peoples in the overcrowded cities of the era (the 19th century marked the start of the transition from rural, agricultural-based societies to urban, industry-based societes in Europe).
World War I completely changed the way wars were fought.
Trench warfare, which was the norm just a century ago was seen as an nonviable strategy.
Modern machines such as tanks and airplanes made trench warfare mostly about keeping ground and resulted in stalemates.
Also, it was the first time that modern tanks, planes and machine guns were being used for first time at such a large scale, resulting in an unprecedented level of death and carnage.
Military generals soon realized that time-honored military code of conducts were now obsolete and a completely new form of strategy was now required.
~Colonists' boycotts of British goods were hurting British trade
The ultimate reason as to why a state will perish will be legislative power that is more corrupt than the executive power, according to Montesquieu