| As shown in the illustrated block diagram for a distributed automation system, what statement is true concerning the data communication pathways labeled "Dual CAN"? |
| A) These are control area networks providing supply and return pathways for communication. |
| B) These are communication access nodes providing supply and return pathways for communication. |
| C) These are control area networks providing redundancy so as to maintain communications despite a bus failure. |
| D) These are communication access nodes providing redundancy so as to maintain communications despite a node failure. |
