The correct answer should be Aztecs.
Aztecs were known for consuming humans and sacrificing them to gods. It was common to them.
Knowledge of the northern regions.
As an example of an ancient culture laying a foundation for a modern idea, you can take an Ancient Greece and their idea of democracy. Athenians founded ekklesia, where an adult male could participate. They held meetings where they used the voting system to make decisions.
Answer:
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.