Which group is most associated with the fall of the Western Roman empire?

Was it Carthaginians, Gauls, Huns, or the Greeks??

I thought it was Egypt or Visigoths but my answer came back as wrong :(

2 answers

Probably the Huns --

http://www.google.com/search?q=fall+of+the+Western+Roman+empire&oq=fall+of+the+Western+Roman+empire&aqs=chrome..69i57j0l5.5915j0&sourceid=chrome&espvd=210&es_sm=119&ie=UTF-8
It is Huns, I was looking through my work book and decided to help someone out! Hope you get a good grade.