Answer:
c. a conflict between two Greystone Motors car dealerships
Step-by-step explanation:
The horizontal conflict is the conflict which can arise between two or more members of marketing channel with the same type of product they are dealing
In the given situation, the Grey stone has two models - commercial & ordinary cars and racing cars. They deal with the same product but opt for different strategy so that they can able to maximize its sales and generates high profit Therefore, it represents the horizontal conflict