What helped the byzantine empire to spread ideas to other regions

A. An industrial revolution that allowed the empire to produce more items for trade
B. a push within the empire to teach latin to people in the east
C. the creation of the Cyrillic alphabet so salvic people could read the bible
D. the spread of germanic languages and its word roots to the east

C. the creation of the Cyrillic alphabet so Slavic people could read the Bible.