Why was the Soviet Union able to prevent Germany from advancing toward
Moscow?
O
A. The Soviet Union signed a nonaggression pact with Germany that
stopped Germany's invasion.
O
B. The Soviet army had more soldiers than the German army, and
German soldiers were not prepared for the harsh Russian winter.
O
C. The Soviet Union combined forces with the United States, and
both armies were able to expel Germany from Russia.
D. The Soviet Union launched a massive air assault against German
troops that allowed Soviet land-based forces in Moscow to protect
the city