Help For which achievement is Charlemagne most remembered? Text to speech

A. He declared war against England.

B. He became the first Christian ruler.

C. He united much of Europe.

D. He taught his people to write.

Which of the following best represents a civilization? o a. a group of hunters following a migrating herd o b. a large group of people living in a city o c. a migrating family that gathers plants o d. a single person living in a cave