What does the battery symbol indicate when it is lit?

The battery symbol lighting up on the dashboard is an important indicator that the vehicle's electrical system is experiencing a malfunction. This warning signals that there could be issues with the alternator, which is responsible for charging the battery while the engine is running. If this light comes on, it means that the battery is not being charged adequately, and continuing to drive could lead to the battery being fully drained, which would leave you without power to operate the vehicle. For safety reasons, it is crucial for a driver to stop the vehicle as soon as possible to avoid being stranded or causing further damage to the electrical system. This is why option B is the correct answer.