The correct answer is B. When the roman empire divided, the eastern roman empire became the byzantine empire.
Step-by-step explanation
The Byzantine Empire was a stronghold of the Roman Empire that was divided into the Eastern and Western Roman Empire to better control its entire territory. The Byzantine Empire was made up of all the eastern territories that belonged to the Roman Empire and was officially created in 395. One of the main characteristics of the Byzantine Empire is that its rise and fall mark the beginning and end of the Medieval Era. The capital of the Byzantine Empire was Constantinople (initially called Byzantium), today known as Istanbul. Therefore, the correct answer is B. When the roman empire divided, the eastern roman empire became the byzantine empire.