Answer:B. because it stops producing output at a point where price is above marginal cost
Explanation:
Monopoly
A monopoly occurs when there is only enterprise to produce a particular product which means there is little to no competition whilst producing that product or service.
A monopoly has powerful in influencing marketing decisions such as managing the price changes .
In order to make a great commodity a monopoly decision on a price should be to raise the price above the amount of available products .
When there are no gains for either customer nor producer than a dead weight loss will result.