Final answer:
The correct answer is 'Private residences,' as they do not represent public ownership of land, contrasting with national parks, state universities, and military bases, which are all public goods.
Step-by-step explanation:
The examples of public ownership of land include national parks, state universities, and military bases. However, the option that does not represent public ownership is private residences. Their ownership is individual or corporate, and not by the government. Public goods, like national security and education provided by the government, are essential as it is challenging for private businesses to fulfill these roles effectively due to their nature of being nonexcludable. Government services such as police and fire are designed to protect and serve the entire community, further underscoring the nonexcludable and non-rivalrous characteristics of public goods.