Question

which of the following does not describe a result of the fall of the western roman empire

Answer 1

the byzantine empire emerged influences from various cultures

trade between the byzantine empire and asia flourished

the culture of the byzantine empire became less diverse

the byzantine empire became the seat of christianity

Answer 2

What doesn't fit is the third option - the culture of the Byzantine empire became less diverse.

This clashes with the first answer, that the Byzantine empire merged influences from various cultures, which was true, as the Byzantines sat literally on the edge of what used to be the Roman frontier and were directly exposed to the Middle East as well as Oriental ideas and customs due thanks to their trading history with Asia.

The empire was also a melting pot of Grecian influences, Roman, Armenian, and a number of other cultures. When the Western Empire fell, it wasn't as if the plug had been pulled on this cosmopolitan nation. It continued on, as the Roman Empire had once done, blending together many different people within its borders.