How do the mosaics in the central dome of the Great Mosque of Cordoba (Fig. 9-8) demonstrate cultural and artistic exchange in the medieval period?

A. Just as with Christian churches, they probably symbolize a celestial canopy.
B. They were installed by a Byzantine master sent by the emperor in Constantinople.
C. The imagery was appropriated from pagan and Christian sources.
D. All of the above

Answer: B