Concept:A monopolist is a single seller who can set or influence price, but the quantity actually sold depends on consumers’ demand.
Explanation:In a monopoly, the producer faces no direct competition.
This gives the producer the power to influence the market price of the product.
However, the producer cannot force buyers to purchase a specific quantity.
At the price set by the monopolist, the quantity sold is determined by how much consumers are willing to buy.
So the monopolist can only influence price, while the quantity sold is determined by market demand.
Answer:B. monopolist