Answer: not a or d but b or c would be the best guess
Explanation:
The industrial and economic developments of the Industrial Revolution brought significant social changes. Industrialization resulted in an increase in population and the phenomenon of urbanization, as a growing number of people moved to urban centres in search of employment.
<span>A
particular system of thought or doctrine is called a philosophy. Oligarchy is
related to business or country held by a small group of people. Diaspora
pertains to people leaving outside their hometowns or countries. Messiah is an
omnipotent Christian god.</span>
A summary of the actions of the many aggressive regimes in Europe of the past several centuries would include mostly religious "holy" wars and a desire for territorial expansion.