The correct answer is C) Meroe.
The ruins of Meroe still exist today in Ethiopia.
Meroe was the capital city of the Kingdom of Kush. It was established after invaders capture the formed capital of Napata in 590 BC. Meroe ruins is a beutiful and ancient historical place that was considered "World Heritage" by the UNESCO. It was an important trade center located in a strategic place, envied by many. Among them, Cambyses, King of Persia, that always wanted to invade the city.
The other options of the question were A) Persia, B) Rome, and D) Cairo.