Which of the Following Statements Is True About Functional Organization

Which of the following statements is true about functional organization structure?

A) Small companies experiencing rapid growth are the only organizations to benefit from a functional structure.
B) One of the main disadvantages of the functional structure is the lack of work specialization.
C) Functional structures are extremely efficient when the organization as a whole has a relatively wide focus.
D) One of the main advantages of the functional structure is that it encourages communication across functions.
E) Functional structures are extremely efficient when the organization has fewer product lines or services.