How did the commercial revolution contribute to the start of the thirty years' war? a. it increased catholic hatred of protestants b. it caused people to identify by nationality c. it enabled countries to afford large armies d. it increased resentment between urban and rural areas

The correct answer is:

B. It caused people to identify by nationality

The Commercial Revolution lead many feudal and local entities to be diminished or disappeared entirely, but some reinvented themselves to become absolutist monarchies and national states. This violent process contributed to the Wars of Religion.

It culminated in the Thirty Years War (1618–48), which began as a religious war but ended as a struggle for national superiority within the Holy Roman Empire, between German Protestants and their allies (Sweden, Denmark, France) and the Holy Roman Emperor and his Habsburg allies.

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explanation:

the confederate at bull run