Answer:
D
Explanation:
D is almost the precise definition of what a monopoly is. It eliminates all competition so that it can control prices.
A: not the answer. It can allow labor unions. It is more concerned about the competition.
B: It probably does use mass production, but this is not the answer. Mass production will help lower costs, but that is not its main feature.
C: The refutation is more like B. It helps lower costs, but that is not what a monopoly does. See the answer to D.
