Which situation is the best example of a zero-sum game?

The correct answer is option D) “Every purchase you make at a chain store is sale that a local small business misses out on.”

A zero-sum game in this example represents the following situation: if the amount of sales increases for a chain store, then the amount of sales will equally decrease in a small store.  

Let’s take the example of a cake. The complete cake represents the total amount of sales in the market. If the chain store takes a big piece of “cake”, then the rest of it is divided into the rest of the small stores.  

In the other options provided, the zero-sum game mathematical process does not apply.

they would have to clean it very clean

what does jane think of mr. rochester the first time she meets him?

b.he is average height, 35 yrs old and not very handsome