Which best explains the role the huns played in rome’s collapse? :

a)the huns attacked seaside cities in an effort to cut off key trade routes.
b)the huns joined with germanic tribes to attack more than seventy cities.
c)the huns attacked more than seventy cities throughout the empire.
d)the huns captured the symbolic cities of rome and constantinople.

Who ever answers first gets ! trade in the vedic age led to a.the rise of kingdoms because of the importance of controlling land and long-distance travel routes b.the building of an extensive system of roads because of the difficult terrain c.the creation of a large banking class because of the need to exchange different currencies d.the development of a centralized government that controlled the economic decisions of its people