Answer:Monasteries preserved Greco-Roman cultural achievements. Missionaries carried Christianity and Latin alphabet to Germanic tribes. The Pope anointed Charlemagne Emperor in 800 A.D. (C.E.) Parish priests served religious and social needs of the people
Explanation:
I’m gonna have to say 1 and 3
The correct answer is that groups of people may be classified in a reasonable way.
This is only for things like statistical data when doing the decennial census or anything similar.