Answer:
The correct answer is D. Some goods unsuitable for efficient management by markets.
Step-by-step explanation:
In economics, the price system of a competitive market is capable of supplying all the goods and services of an economy. However, there are some situations where this is not possible, these are known as market failures.
For example, street light and a city's sewer are market failures. It is not profitable for a company to dedicate itself to lighting in the street, because it would invest a lot of money but nothing would come in and in the end it would fail. Therefore, the government is responsible for performing these tasks, covering market failures.