4. Wireless, high-speed internet is provided for free in the airport of the city of Community Ville.

a. At first, only a few people use the service. What type of a good is this and why?

b. Eventually, more people find out about the service and start using it. The speed of the connection begins to fall. Now what type of a good is the wireless internet connection?

c. What problem might result and why? What is one possible way to correct this problem?