Amonopoly firm is the only seller of a good or service that a) does not need to be advertised. b) has no close complements c) does not have a close substitute. d) has a perfectly elastic demand.

C) does not have a close substitute.

Explanation:

A monopoly is a market structure where there is only a single seller but many buyers. The seller therefore has more bargaining power over buyers and is therefore the price maker; a monopolist decides and sets the price of the product. Since there is only one seller, it means that the good does not have close substitutes. However, a multi-product monopolist could sell goods or services that are close complements.

prokaryotic cells do not contain a nucleus or any other membrane-bound organelle. eukaryotic cells contain membrane-bound organelles, including a nucleus. so i belive the answer is a : p hope it

where is the graph?