HELP ME PLZZ THIS IS DUE TODAY!

Correct answer is C.

Explanation:

C is the correct answer because Abbasid Caliphate was established after the death of Mohammed in the 7th Century, while all other events happened before.

A is not correct as it is connected to first civilizations, so it cannot fit the timeline.

B is also not correct as Roman Empire and Sassanid Empire fought centuries before the foundation of Islam.

The same goes with D as Alexander lived in the 4th Century BC.

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