Respuesta :
Answer:
Both A and B are correct
Explanation:
The battery of a car works on the electrolysis phenomenon. There is an electrolyte present in the battery of the car. That battery is connected by wires to the appliances such as lights and engine. If there exist a difference in the voltage then it probably be the problem of electrolyte inside the battery. If water inside the coolant is very impure and contains impurities then ionization process is disturbed. Similarly if wire ends are rusted then they may also produce malfunctioning with battery. Therefore both A and B re correct.