Question

At the end of the Classical Age

(A) belief systems failed to survive the collapse of classical civilizations.
(B) only the Mediterranean Greco-Roman civilization experienced upheavals.
(C) the Huns (Hsiung-Nu) destroyed all great Eurasian classical civilizations.
(D) there was a religious upsurge as a result of social and economic problems.
(E) trade ceased to be important.

Answer 1

(D) there was a religious upsurge as a result of social and economic problems.

Step-by-step explanation:

At the end of the Classical Age, "there was a religious upsurge as a result of social and economic problems."

This is true in the sense that the classical age which lasted between the 8th century BC and 6th century AD was based majorly on the Greco-Roman world civilization.

This classical period was followed by the Middle Age period in which there were various socio-economic problems such as mass migration, invasions, rise in religions (including Christianity and Islam), war, and diseases such as the Black death.