The correct answer is the letter A)Romans, Greeks, and Christians.
The Byzantine Empire was a continuation of the Roman Empire of the East, which lasted until the fifteenth century, when the capital Constantinople was conquered by the Turks-Ottoman in 1453. The legacy left by the Byzantine Empire is broad ranging from commercial routes between West and East to contemporary civil codes. The Constantinople city, an ancient village of Greek fishermen, was urbanized around 330 A.C. by guidance of the Roman Emperor Constantine. Originally known as New Rome, Constantinople became the capital of the Roman Empire of the East and a large commercial center due to its privileged geographical location on the Bosphorus, a point of convergence between the western and eastern world. In addition, Constantinople was considered the greatest cultural center of the Christian world during the Middle Ages, mainly for the preservation of a great quantity of artists and thinkers works, of the antiquity, especially of the Greeks and the Romans. The activities of the copyist monks provided that the Renaissance thinkers could get in touch with the classics of antiquity. Even the Greek influence on the Byzantine Empire was enormous, to the point of replacing the use of Latin by the Greek in religious ceremonies and official documents.