B. Most nations had one primary religion.
The Reformation had occurred in the 16th century (the 1500s). By 1600, the positions had solidified, and nations typically were of one religious position or another. Italy, France and Spain and certain other states remained staunchly Roman Catholic. Most of the German states had become Lutheran, as had Scandinavian countries. England had established the Church of England, its own brand of Protestantism. Many cantons in Switzerland had become enclaves of Calvinism. There wasn't much of a notion yet of religious diversity within the same community or society. Each principality or territory tended to have one official religion operating in it.
Mexican immigrants wanted to escape poverty, war, turmoil, and even persecution for certain groups
Answer:
On this day in 1814, during the War of 1812 between the United States and England, British troops enter Washington, D.C. and burn the White House in retaliation for the American attack on the city of York in Ontario, Canada, in June 1812.
The answer is B), detente, which was established when Reagan became President.