Which of the following is one of the ways that the byzantine empire impacted eastern europe and russia?

if the choices are...

A.  The Justinian Code became the legal system that was used.

B.  Greek became the most widely spoken language in those areas.

C.  The Byzantines spread Orthodox Christianity in those area.

D.  The Byzantine army often defended Russia and Eastern Europe from invaders.

The correct answer is C

try this

explanation:

it should be a. song dynasty’s civil service examination system created an administrative bureaucracy manned by the landed aristocracy.