Final answer:
A garage sale, gas station, and barber shop are all examples of markets as they involve the exchange of goods and services, thus 'All of the above' is the correct answer.
Step-by-step explanation:
An example of a market includes various platforms or locations where goods and services are exchanged between buyers and sellers. The options provided:
- b. A garage sale
- c. A gas station
- d. A barber shop
are all examples of markets because they involve the transaction of goods and services. A garage sale represents households in the goods market, where individuals sell items they no longer need. A gas station represents firms in the goods market, selling fuel and potentially other convenience items. A barber shop exemplifies firms in the labor market, offering haircutting services. Therefore, the correct response to the question would be:
a. All of the above are examples of markets.