Respuesta :
D. Byzantine Empire -- which was known as the "Eastern Roman Empire"
Correct answer choice is:
D. Byzantine Empire.
Explanation:
By 285 CE the Roman Empire became expanded so extensively that it was no longer possible to rule all the territories from the central foundation of Rome. Diocletian, a powerful Roman general, gained control and proclaimed himself the unique dictator. Emperor Diocletian distributed the federation into halves by the Eastern Empire ruled out of Byzantium (later Constantinople) and the Western Empire administered from Rome.