A. It promoted the overthrow of absolute monarchies. is your best answer
Conservatism affect the nationalist movements in Europe, as the conservationist believed in nationalism, which meant that the people gets the most power. Nationalists used this reason to be able to drastically change their countries government, and create a different national government.
Examples can be found in:
The French Revolution brought drastic changes (however, did not attain the goal they wanted exactly). They were able to overthrow the monarchy, and set up a new government under Napoleon Bonaparte. However, Bonaparte soon became such like a military dictator, and ruled the French Empire until it collapsed.
The American Revolution was able to liberate the colony located in present-day U.S.A from the British Royal crown. They were able to establish a federal system of government with parts of British government and Ancient Greek government styles infused into their system.
hope this helps
Conservatism affected the nationalist movements in Europe by delaying or extending nationalist struggles.
The belief that people belong to a group with a history, language and customs similar to theirs, is called a nation, and that the totality of a person's loyalty and sense of value must come from the nation.
Nationalism was an important movement in the nineteenth century that shaped the beliefs of many people in Europe, who tended to demonstrate the superiority of their nation over other nations. This type of thinking lead to conflicts between some European nations.
I believe the answer is: It delayed or extended nationalist struggles.
The nationalist struggles come after different nations started to fully embodied nationalist movement, which make them tend to incline to prove their nation's superiority over another nations. This type of thinking often lead to conflicts among these european nations.
It delayed or extended nationalist struggles.