How did constantinople's church of hagia sophia demonstrate how the byzantine empire blended with the old roman empire?

a. the church combined both greek and roman architecture, and became a melting pot where eastern and western cultures came together.

b. the church housed a large library that included many books with information about traditions, customs, and laws from the old roman empire.

c. the church's leaders taught followers the laws and rules from both the byzantine empire and the old roman empire so that both cultures could survive.

d. the church was built with many columns and arches, as well as a bell-shaped roof, which were signature elements of old roman architecture