Use the map below to answer the following question:

A map showing the religions of Europe around 1600 CE. All of modern day Portugal, Spain, France, and Italy are Roman Catholic. Significant portions of Germany, Poland, Lithuania, central, and southeastern Europe are also Roman Catholic. The Protestant religions of Lutheranism, Calvanism, and Anglicanism were spread across Norway, Sweden, Denmark, England, Scotland, eastern Ireland, Switzerland, Hungary, and parts of Poland, Lithuania, and southeastern Europe. The Holy Roman Empire is located in modern day Germany. Almost all of Russia, eastern Lithuania, and Poland is Orthodox Christian. The Ottoman Empire in southeastern Europe is also primarily Orthodox Christian but a large Muslim population also lives within southeastern Europe.

Which of the following inferences can be made about the religious makeup of Europe around 1600 CE?

A. Islam was spreading quickly across Europe.

B. Most nations had one primary religion.

C. Orthodox Christians were in conflict with Muslims.

D. Immigration had made Europe religiously diverse.