Answer:
The correct option is d free entry and exit which is not a characteristic of a monopoly.
Explanation:
Monopoly is a market structure which sells a unique product with no close substitutes. Due to which it create a market power in the market.
In monopoly, there is only a single seller in which a competition is not exist. But there is a barrier in a free entry and exit so that the chances of competition is not there.
Example - Apple inc, windows, etc.
So, by above explanation.
The correct option is d free entry and exit which is not a characteristic of a monopoly.
