In a system, changes in one part can control what goes on in the system as a whole. Which answer explains how different parts of a system can be interconnected?
A. The output from one part can become the input to other parts of the system.
B. The outputs of a system are never changed by the inputs of the system.
C. The outputs of a system always leave the system.
D. The inputs of a system always come from outside the system.