PLEASE HELP 50 POINTS (easy question) Which was a major source of conflict between the Ottoman and Safavid empires? *

There was a lot of conflict between the Sunni and Shi'ite Muslims.
The two empires often fought over trade routes.
The two empires fought over religious differences between Christianity and Islam.

a. There was a lot of conflict between the Sunni and Shi'ite Muslims.

Explanation:

The Ottoman and Safavid empires were both muslim, but the Ottoman empire was sunni while the Safavid empire was Shiite. This caused conflict between the two empires along with fighting over territory, considering they bordered each other, so they went into a war called the Battle of Chaldiran. The Safavids lost the war due to lack of gunpowder technology.

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c) troops march forward in close formation against newer, more accurate weapons