Sounds like homework, so I'll just discuss and let you choose. Follow the "Hint" and review:
Apples and pigs are difficult to store. The apples will rot, and pigs require feed and cleanup. However, they meet the basic need of food.
Cigarettes may meet the double coincidence of wants, but many don't smoke. In … Read more
those are all eay to get
Money has to be scarce
You need to work for money