Which of the following is an example of a type of title insurance?

The owner's policy is a specific type of title insurance designed to protect homeowners against potential title defects that could affect their ownership rights. This insurance provides coverage for issues that may arise after the closing of the property, such as undiscovered liens, encroachments, or issues stemming from prior ownership. The owner's policy ensures that if a claim arises regarding the title, the insurance company will defend the homeowner's title and cover any financial losses up to the policy amount.

In contrast, the other options do not represent recognized types of title insurance. For instance, a frequent buyer's policy is not standard terminology within title insurance. Similarly, while there could be policies aimed at investors, they often fall under specific underwriting criteria or other forms of coverage rather than being universally recognized. A national policy is also not a standard classification in the realm of title insurance. Overall, the owner’s policy stands out as a fundamental component of title insurance offerings, making it the correct response.