A. Having left no historical record of their own,
the history of their enemies provide modernity the only record of the Huns, who conquered numerous German tribes in Europe and assaulted the eastern Roman Empire.
B. Having left no historical record of their own,
modernity knows the Huns, who conquered numerous German tribes and assaulted the eastern Roman Empire , entirely through the histories of their enemies.
C. Although they have left No historical record of their own,
concurred numerous Germanic tribes in Europe and assaulted the Eastern Roman Empire, the Huns are known to modernity Entirely through the histories of their enemies.
D. Having left no historical record of their own,
the Huns, Who conquered numerous Germanic tribes in Europe and assaulted the Eastern Roman Empire,
are known to modernity Entirely through the histories of their enemies -->
Correct, rectifies modifier errorE. Leaving no historical record of their own,
modernity Knows the Huns through theHistories of their enemies, who concurred numerous Germanic tribes in Europe and assaulted the Eastern Roman Empire.
Hence,
D.