What was the thirty years war and how did it change how people viewed different religions?

The Thirty Years War was a 17th century religious conflict initially in Central Europe.The war lasted from 1618 to 1648,starting as a battle among the catholics and the Protestants that formed the Holy Roman Empire.The war brought famine and disease in Europe.

But as the war evolved,it became less of a religious war and more of a thing that which group would govern Europe.

This conflict changed the geopolitical face of Europe and the role of religion and nation - states in society.

i think the answer is b.

we need the map to answer the question