The answer is most likely- the British were disregarding our rights on the seas by seizing our sailors
The correct answer is "they are very profitable for owners, but usually result in dissatisfied producers and consumers.
The reason for this is because a monopoly controls all commerce in that particular market. When a monopoly has control, it can decide what prices to sell its goods, and often leaves buyers/consumers dissatisfied.
It had a central planning economy
The correct answer will be a & b