Final answer:
Gamma specializing in food production and Omega specializing in clothing production is an example of vertical integration.
Step-by-step explanation:
In this case, the specialization of Gamma in food production and Omega in clothing production is an example of vertical integration. Vertical integration occurs when a company controls multiple stages of the supply chain. By specializing in different stages of the production process, Gamma and Omega are vertically integrated as they can work together efficiently to produce and distribute their respective products.