Which of the Following Is an Advantage Associated with Managing

Which of the following is an advantage associated with managing projects in a functional organization?​ 

A)  Traditional department barriers are reduced. 
B)  Unity of command - all workers understand clearly what they need to do because only one "boss" is giving them instructions. 
C)  Rapid communication between the various functions working on the project. 
D)  Combines task focus with technical capability.