Which statement accurately describes the Hagia Sophia? A. It was an ornate shrine built on the spot where Muslims believe Muhammad ascended into heaven. B. It was a fabulous palace constructed by Emperor Justinian to honor his wife, Theodora. C. It was a formidable fortress built by the Byzantines to protect trade routes through the Bosporus. D. It was for many years the largest church in the world, filled with magnificent mosaics and frescoes.