Which one of the following is a principle upon which the author bases an argument against the theory of the internal relations? A. An adequate theory of complex systems must define the entities of which the system is composed. B. An acceptable theory cannot have consequences that contradict its basic purpose. C. An adequate method of study of complex systems should reveal the actual complexity of the system it studies. D. An acceptable theory must describe the laws and initial conditions of a complex system. E. An acceptable method of studying complex systems should not study parts of the system in isolation from the system as a whole.