The Answer to your question is "B"
Answer:
The Visigoths sack Rome. At its height the Roman Empire stretched from Britain and the Atlantic to North Africa and Mesopotamia. ... He hoped to draw the Visigoths into an alliance against the eastern Romans, but now hordes of other Germanic warriors invaded the western empire across the Rhine.
Generally speaking, it would be a "nation" that is the term that is is used for “a community of people that shares territory and a government”, since the other options usually reside within said country.
King Arther was a king of a broken kingdom but one day he saw the sword in the stone and he pulled it out