Use the Following to Answer Questions: Table: GoodsClassification
Shirt
Rainfall

Use the following to answer questions: Table: GoodsClassification
Shirt
Rainfall
Smog Reduction
PlayStation Controller
Cable TV
National Defense
Baltimore Aquarium
Chewing Gum
Your Economics Textbook
Free Public Library
Your Teacher's Open Office Hours
Pen
Free Public Bus Service
-Describe the difference between each of the following three pairs of goods or services according to whether they are excludable or nonexcludable and rival or nonrival. $\begin{array}{|l|l|}\hline \text { a. } & \text { a city police department and a commercial security system } \\\hline \text { b. } & \text { movies on } \mathrm{HBO} \text { and movies on PBS (Public Broadcasting Service) } \\\hline \text { c. } & \text { fish in the ocean and fish in a fish farm }\\\hline\end{array}$