Which of the Following Best Describes Horizontal Division of Markets

Which of the following best describes horizontal division of markets?

A) An agreement by competitors to serve only a designated portion of the market for their products.
B) Any action in which a company distributes some products in one geographic area and other products in another geographic area.
C) Any action in which a company charges different prices for a product depending on the geographic market.
D) An agreement under which two companies agree to jointly market related products,such as sport utility vehicles and outdoor sports equipment.
E) The granting of exclusive geographic territory to salespersons.