A map of the Byzantine Empire. The extent of the empire in 527 (including Turkey, the Levant, Egypt and Greece) is shaded one color. Justinian’s reconquests (North Africa, Southern Spain, Italy) are shaded another color. The city of Carthage is labeled in North Africa along the Mediterranean Sea. The city of Ravenna is labeled in Italy. The city of Constantinople is labeled between Macedonia and Anatolia. Antioch is labeled near the Arabia Peninsula. Which of the following cities was known as the Byzantine Empire’s economic and religious center?

Carthage
Ravenna
Constantinople
Antioch