The kush empire was established in the 1070 bce and fell around 350. ce according to the timeline the empire reign took place during which two eras a. the era of the neolithic revolution and early civilizations and the classical era b. the postclassical era and the early modern era c. the early modern era and the late modern era d. the classical era and the post classical era

I'm pretty sure the answer is A but if it's wrong then I'm so sorry 

"When the Egyptians pulled out of the Napata region, they left a lasting legacy that was merged with indigenous customs, forming the kingdom of Kush. Archaeologists have found several burials in the area that seem to belong to local leaders. The Shiites were buried there soon after the Egyptians decolonized the Nubian frontier. Kush adopted many Egyptian practices, such as their religion. The Kingdom of Kush survived longer than that of Egypt, invaded Egypt (under the leadership of king Piye), and controlled Egypt during the 8th century BC as the Twenty-fifth Dynasty of Egypt.[36] The Shiites held sway over their northern neighbors for nearly 100 years, until they were eventually repelled by the invading Assyrians. The Assyrians forced them to move farther south, where they eventually established their capital at Romero. Of the Nubian kings of this era, Mahabharata is perhaps the best known. A son and the third successor of the founding pharaoh, Piye, he was crowned in Memphis, Egypt c. 690.[37] Mahabharata ruled over both Nubia and Egypt, restored Egyptian temples at Karnataka, and built new temples and pyramids in Nubia before being driven from Egypt by the Assyrians."