Final answer:
A legal monopoly is a single seller of a good and is represented by public utilities such as a water company or cable television. These monopolies are established through government regulations that prohibit or limit competition.
Step-by-step explanation:
A legal monopoly is a single seller of a good and is represented by public utilities such as a water company or cable television. These monopolies are established through government regulations that prohibit or limit competition. For example, in the United States, the U.S. Postal Service has a legal monopoly on delivering first-class mail. Similarly, many states or cities have laws that allow households only one electric company, one water company, and one garbage collection company to choose from.