Answer: Carnegie Steel had a(n) Integrated channel relationship.
Explanation:
Carnegie Steel Company has an integrated marketing channel. As the company is involved in vertical integration the company is in the same line of business from acquiring raw materials to making it into finished goods.
So there is a better bonding between the channels of the business. It makes it cost beneficial and ease of operations for Carnegie. The company also has advantage of maintaining the time of stock delivery. This business has connected chain of entities internally and externally.