President Polk sent General Taylor to claim an area of disputed land for the United States.
Successful: Medicare and Medicaid and the National Endowment for the Arts
Unsuccessful: Model Cities Program, Office of Economic Opportunity
Many of the programs were unsuccessful due to the cost of the Vietnam War and not because they were bad ideas.
The best and most correct answer among the choices provided by the question is the third choice "natural monopoly."
A natural monopoly<span> is a distinct type of </span>monopoly<span> that may arise when there are extremely high fixed costs of distribution, such as exist when large-scale infrastructure is required to ensure supply.</span>
I hope my answer has come to your help. God bless and have a nice day ahead!
