The best option would be that "<span>a. The collapse of imperial power coincided with the demographic impact of epidemic disease and external threats," since external enemies had more power to attack and pillage. </span>
It offered the first real definition of citizenship
During WW2, Georgia was among the targets of the German Case Blue (Fall Blau) offensive in 1942, which aimed to seize the oilfields of the Caucasus region, but Axis troops were stopped before reaching Georgian borders. ... After the war, Georgia remained a Soviet republic until the dissolution of the Soviet Union in 1991.
Sharecropping is a type of farming in which families rent small plots
The answer is going to be B. The native people lacked natural immunities.
The Europeans, having already been exposed to these diseases, had already built up their immune system to the diseases. The native people, on the other hand, had not been exposed to these diseases, and thus died because of it.
I hope this helps!