What is one of the primary characteristics od perfectly competitive markets

The correct answer is: "many producers and all are price takers"

Perfect competitive markets are characterized by a large number of producers and each offer the same homogeneous product, this is why they have little bargaining power and they are all price-takers. Tthey cannot influence the market price at which the product is commercialized. They can only decide the amount that they will offer according to their price maximization strategies.

Markets of agricultural products are considered the best example of perfectly competitive markets in the real world.

i think the answer is c, rivers.

explanation:

sometimes, borders fall along natural boundaries like rivers or mountain ranges. for example, the boundary between france and spain follows the crest of the pyrenees mountains. for part of its length, the boundary between the united states and mexico follows a river called the rio grande. the borders of four countries divide africa’s lake chad: niger, chad, cameroon, and nigeria.

where are the statements?