Vertical Foreclosure Is an Example of a Firm

Multiple Choice

Vertical foreclosure is an example of a firm:

A) engaging in a price-cost squeeze.
B) that merges with a rival firm with the intention of eliminating the rival firm's product from the market.
C) engaging in penetration pricing.
D) that controls an essential upstream input and raises rivals' costs by refusing to sell to other downstream firms that need the input.