Correct Answer: A fishery

Solution : The correct answer is (c) A fishery.

A common-pool resource refers to a resource that is non-excludable but rivalrous in nature. This means that it is difficult to exclude individuals from using the resource, and when one person uses it, it diminishes the availability or quality of the resource for others.

In the given options, a fishery best fits the definition of a common-pool resource. A fishery is a natural resource where multiple individuals or fishing companies can access and harvest fish. The fishery is non-excludable because it is challenging to prevent fishing activities in open waters, and it is rivalrous because if one person catches a fish, it reduces the number of fish available for others to catch.