What exactly is the question here?
Answer:
d. The Roman capital moves to Byzantium.
Explanation:
In the year 330 C.E., empreror Constantine moved the Empire capital from Rome to Byzantium, located in the strait of bosphorus, between Anatolia and Greece.
The emperor also changed the name of the city, after him: Constantinople. From this moment on, Constantinople would continue to be a larger and more important city than Rome, which would continue to decline.
Answer:
The right choice is:
Islamic armies conquered major cities to help spread Islam in three continents.
Explanation:
Following the death of the prophet Muhammad in the 7th century, a powerful wave of Arab, Muslim expansion swept across Asia, Europe and Africa. They established caliphates and empires that turned into major centers of learning and study in the next centuries.