Answer:
A. Thomas jeffersons plan
:) sorry if its wrong
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.
The answer is: They were searching for a northwest passage to Asia. They believed that the north west passage was the safest route from Europe to Asia. Hope this helps!