The answer is D. economic problems in one nation spread to other nations.
I believe this would be segreation.
This is a very sad thing that went on and can still continue to go on when the whites were segregated from the blacks.
hope this helps!
The economy you described in your question is called a market economy. It has free markets and the production of goods and services are determined by the consumers.
Limits of fiscal policy include
difficulty of changing spending levels, predicting the future, delayed
results, political pressures, and coordinating fiscal policy.