Final answer:
Hershey's 2006 model is mainly focused on integration, which involves combining different functions within the organization to achieve a common goal.
Step-by-step explanation:
The main focus of Hershey's 2006 model is integration. Integration refers to the process of combining different functions within the organization and coordinating them to achieve a common goal. In the case of Hershey's 2006 model, the company focused on integrating its various departments and functions to improve efficiency and effectiveness.
The options presented, such as adaptation, integration, differentiation, and standardization, all pertain to strategies that entities might employ when interacting with diverse environments or markets. However, in the context related to the 'salad bowl' metaphor provided, the relevant concept is b. Pluralism. This metaphor suggests that in a pluralistic society, different groups maintain their unique cultural identities, much like individual ingredients in a salad, rather than conforming to a single societal norm as in the 'melting pot' metaphor, which would correspond to assimilation.