Answer:
D. Every purchase you make at a chain store is a sale that a local small business misses out on.
Step-by-step explanation:
In the example the balance between loss and gain is illustrated. If one party gains , there is another party that loses. The chain store wins but the small business loses when you buy an item from the chain store. As the same item can be bought from the small business, too, your purchase of that item from the chain store makes the small business sell less, thus it loses.