Which best describes the difference between expectations for world war i and the reality of the war?

a soldiers expected fierce fighting but encountered limited warfare.
b civilians thought soldiers would do all the fighting, but they were forced to fight in the streets of many cities.
c most europeans believed the war would end quickly, but it bogged down in trench warfare.
d americans expected to enter the war on the allied side, but the united states remained neutral.

C Most Europeans believed the war would end quickly, but it bogged down in trench warfare.

Explanation:

Trench warfare or war of position is a form of warfare, in which the fighting armies maintain static lines of fortifications dug in the ground, called trenches. Trench warfare arose from a revolution in firearms. There were periods of trench warfare in the Civil War (1861-1865) and the Russo-Japanese War of 1904-1905, but it reached its peak of brutality and mortality on the Western Front of the First World War. They reached a depth of between one and two meters, and connected with others for greater mobility of the battle blocks.

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explanation:

profound political, administrative, and social changes in the british isles.