Answer:
D: Germany had already conquered most other countries in Europe, so it's military was weakened and not strong enough to compete against the Soviet Union's powerful army
Explanation:
If you know, the invasion (Code named Operation Barbarossa) was a COMPLETE failure. And Germany's army had weakened by the conquering of other European countries. The failure was mostly caused by poor planning and strategy.
We learned how to read ancient hieroglyphics when after Napoleon's troops discovered the Rosetta Stone, which had translations of the hieroglyphics in Ancient Greek, which many people knew how to read.
There were of course several big differences between these two regions, but in general Russia was not as technically and culturally advanced as western Europe. They were also still orthodox.