The president of company A decides that company A should work with company B to develop a new product. The president tells her legal department to look into the idea, and they in turn ask the engineering department for help. As a result, the chief engineer calls his counterpart at the other company to discuss the technical aspects of the project. The engineers then report back to their respective legal departments, which then confer by telephone to arrange the legal aspects. Finally, the two corporate presidents talk over the telephone to discuss the financial aspects of the deal. Is thisa an example of a multilayer protocol in the sense of the OSI reference model? Please explain.