Answer:
Nevertheless the Holy Roman Empire kept alive the idea of a unified Europe by maintaining a connection with Rome and the Kingdom of Charlemagne. Napoleon has come closer than anyone to unifying the European continent.
I believe 5th dynasty of China is the Sui. Not sure what dynasties you speak of but that comes to mind first
D. Constitutional Monarchy
William and Mary had agreed to the senators of parliament to increase the power of the government rather than the monarchs themselves.
The answer is B- the decline in European population
The war impacted popular culture and entertainment because many forms of entertainment were politically skewed after the war. fear of communism is shown in film and even books by popular author dr.seuss. the media was ruled by WASPS (white anglo-saxon protestants.) not only this, but counter-culture began to rise as younger people of color and people from the LGBTQ+ community began to speak out