What type of resources can be excluded from others?

The correct answer is based on the concept of scarcity in economic theory. Scarce resources, by definition, are limited in availability compared to the demand for them. This limitation means that certain individuals or groups can exclude others from accessing these resources. For example, if a specific natural resource, like a mineral deposit, is owned by a company, that company can control who has access to it, effectively excluding others from using it.

In contrast, unlimited resources are those that are not subject to depletion and are freely available to all, making exclusion impossible. Shared resources are typically accessible to multiple users, leading to shared usage rather than exclusivity. Public resources, such as parks or air, are intended for use by everyone, hence they cannot be excluded from others. This context provides clarity on why scarce resources stand out as the type that can be controlled and limited in access.