Answer:
The correct answer is perfectly competitive firm.
Step-by-step explanation:
The discriminating monopoly of prices is that where each unit of the product is placed at a different rate. That is, the seller charges each customer differently, depending on various factors such as the budget constraint.
The marginal income curve of the monopolist that can discriminate perfectly is exactly the same as its demand curve. The level of production maximizing the benefit of the benefit is Q *, which is the one in which the CMC curve is cut and the demand, the economic benefit (II).