Answer:
The correct answers are:
1) "B": common pool resources are overused.
2) "C": overfishing in public waters.
Explanation:
1) The tragedy of the commons is a resource-based economic problem that takes place when given resources are overexploited without a clear renewable plan or government restrictions that avoid the extinction of those resources. Those resources are usually scarce.
2) Overfishing in public waters is a clear example of the tragedy of the commons. Certain types of fish are scarce. The situation worsens when there are no clear limits imposed on fishermen who tend to overexploit fishing for economic purposes. A real-life example of this is the collapse of the North Atlantic Cod fisheries on Canada's eastern coast.