Answer:
D. nonrival and nonexcludable.
Explanation:
The city's rose garden is open to the public and therefore referred to as a public good. Additionally, a public good whose consumption by one or more person does not deplete the amount left for others is called a non-rival good; the garden is therefore a non-rival good because if one person enjoys the view, it does not reduce the consumption by other people. It is also non-excludable because it is almost impossible to prevent anyone from viewing the garden.
