What is one problem of the market economy?
A. prices for goods can get high very quickly if demand goes up but the supply does not change.
B. The price of goods is set by the government, so people know exactly how much things will cost.
C. people know that they will always have a job because the government owns all the business and farms.
D. there can be shortages of goods if the government does not predict which goods will be needed by people.