What was one step that Charlemagne took to help unite his kingdom?

4 answers

i think its c but idk
ima tell you the answers when i get them
Pls use these to check your answers to see what you have learned (in not a teacher xD)

1. rivers
2. the franks
3. created and supported schools
4. suggested the the popehad the power to choose an emperor

100% right trust me
Anonymous is correct 4\4 THANK YOU