In oligopoly markets, the market demand curve is:

a.upward sloping.

b. downward sloping.

c. horizontal.

d. vertical.

The answer is b: downward sloping.

The demand curve in oligopoly markets slopes downward. A demand curve refers to a graphical representation of how a commodity's demand impacts the price of the product. The demand curve of oligopoly market slopes downward because an increase in demand for a commodity leads to a rise in price. On the other side, a drop in need of a product leads to a decline in the price. Thus, the producers and sellers in an oligopoly market can control the forces of demand and supply to manipulate the commodities' price.