Answer:
D. usually produces an inefficiently small level of output.
Step-by-step explanation:
A perfect competition is characterised by many buyers and sellers of homogenous goods and services. Market prices is usually set by market forces. There is no need for advertising because all firms produce homogenous products. There is little or no need for government regulation because goods and services are efficiently distributed.
A monopoly is characterised by one firm in the industry. The firm sets the market price. The government regulates the activities of the activities of a monopoly to reduce inefficiency that usually occur. Either quantity produced or price are usually regulated by the government to reduce inefficiency and ensure fair distribution of goods and services.
Monopoly firms usually advertise and undertake more research activities when compared to a pure competition.
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