Final answer:
Both turn signals should not be flashed at the same time to indicate a disabled or parked vehicle. The appropriate signal to use is the hazard lights.
Step-by-step explanation:
The correct answer is B) No. Both turn signals should not be flashed at the same time to indicate a disabled or parked vehicle. When a vehicle is disabled or parked, the appropriate turn signal to use is the hazard lights, also known as the emergency flashers. The hazard lights are mutually exclusive to the regular turn signals and should be activated to indicate that the vehicle is disabled or parked.