Which barbarian tribe invaded england after the fall of the roman empire in the west

The Franks truly became powerful after the fall of the Western Roman Empire and would eventually become one of the leading empires in Western Europe. Saxons - As Rome began to weaken, the Saxons moved from Western Europe and began to invade Great Britain.

Explanation:

I hope this helps  I learned about this last year in my western civ class.

the use of email to replace slower surface mail.

c or d both can be the answer