I might be wrong but I believe it's either A or D.
In the Business Cycle, always following it Immediately after a Peak is:
~Almost always After a Peak is usually a Huge Drop.
Hope this helps.
Answer:
The right answer is:
c. a large church in Constantinople.
Explanation:
The Hagia Sophia (Saint Sophia) was built during the reign of Byzantine emperor Justinian the Great in Byzantium, later called Constantinopole, between 532 and 537. It´s the most important architectural achievement of the Byzantine Empire and one of the world´s great monuments.