In taking the Orthodox faith into early Russia in the 800s CE, Byzantine missionaries Cyril and Methodius also

A) spread the bubonic plague.

B) introduced a new alphabet.

Eliminate

C) spied on the Russian star.

D) eliminated Muslim influence.

The correct option is B.

Cyril and Methodius are two monks who took Christianity to Russia in the 800's. These missionaries introduced Cyrillic alphabet, which is also called Glagolitic alphabet. This was the first alphabet that was used to transcribe old church slavonic. This alphabet is still in used in Russia today.