The answer is A the eastward expansion of Russia under Catherine the great. Let me know if you get it right...
Babies are made through male and female intercourse
<span>The basic beliefs of Jesus that are preached are based on monotheism of Judaism, and generally reject Hellenistic and Roman influence. Though the Romans tried to stop it, Christianity spread like wild fire through missionaries and merchants in afro-eurasia and finally began to get backing from Romans under Constantine.</span>
They differed in beliefs about the Holy Spirit.
One group of clergy used Latin, the other Greek
There was a power struggle between the pope and the emperor.
hopefully i helped