Final answer:
The most correct statement about a company's internal structure is that in a matrix organization, the highest level below the CEO is organized by function. Organizational structures need to be adapted to a company's strategy and context, and matrix and team-based structures are increasingly popular.
Step-by-step explanation:
When examining the internal structure of a company, it's clear that not all organizational structures are equally effective in all scenarios. The correct statement among the options provided is: b. In a matrix organization, the top-most level below the CEO's office is organized by business function. This structure allows for both function-based and project-based reporting lines, which can facilitate more effective collaboration and resource sharing across projects. It's not accurate to say that a functional organization cannot deliver projects (option a) as functional organizations can still manage projects within each function. Moreover, it's not true that in every project organization, every business function is replicated within every project unit (option c), as this would be highly inefficient. Lastly, while having any internal structure is important, claiming that any internal structure is as good as any other (option d) oversimplifies the complex interplay between organizational design and business strategy. Today's workplaces often adopt flat or team-based structures as a response to rapid changes in technology, economics, and globalization.