Which best describes the role of constantinople in the byzantine empire?

constantinople was a main trading center.
constantinople was a secondary trading center.
constantinople was a greek trading center.
constantinople was a roman trading center.

Constantinople was a main trading center.

Constantinople sat between Europe and Asia making it geographically perfect to become a trading center.

Constantinople became a city of wealth and the center of Byzantine trade. Due to its prime location, the city was a target of military siege in particular by the Ottoman Empire. Eventually the city was taken by the Ottoman Empire and was changed in name to Istanbul.

Constantinople was a Roman trading center.

america

if the government does something the people dont like i tihnk threre would be a revolt