entry for each dropdown box in the following table.

In a small town, there are four providers of broadband Internet

access: a cable company, the phone company, and two satellite

companies. The Internet access offered by all four providers is of

the same speed. Almost everyone in the city already has

broadband, so any potential new company would have to engage

in a price war with the existing companies and would be unlikely

to cover its costs for years, if ever.

The government has granted the U$.$S$.$ Postal Service the exclusive

right to deliver mail.