With no explanation, label text_A→text_B with either "DON'T KNOW", "NO" or "YES".
text_A: all of the great confederations of steppe warriors were ethnically homogenous, so the same name was used by different groups for reasons of prestige, or by outsiders to describe their lifestyle or geographic origin. [...] It is therefore easy to speculate about identity or blood relationships between H(s)iung-nu, Hephthalites, and Attila's Huns, for instance. We can safely say that the name "Huns", in late antiquity, described prestigious ruling groups of steppe warriors.
text_B: Would steppe warriors who were strangers to each other be likely to have common ancestors?
YES.