Answer:
C. aggregate demand
Explanation:
AS curve:
It is described by the allocative efficiency curve, reflecting the relationship between price levels and the amount of production that companies are willing to provide. The correlation between allocative efficiency and market price is usually positive.. A vertical AS curve indicates that the aggregate supply level will decide the economy's actual GDP, independent of the level of aggregate demand.
Therefore the answer is C.
C. aggregate demand
The answer is "protectionism".
Protectionism refers to the act or point at which a nation tries to shield its own particular enterprises from global competition. Truly protectionism has been related with nations endeavoring to create from rich to poor. The most widely recognized contention for protectionism is that before a nation can contend globally it needs time to build up it's own businesses. This is in some cases called the infant industry argument.
Answer:
D. The Berlin Wall was built
Explanation:
