True or False: The batteries are charged by the electricity generated by the alternator.

The statement is true because the alternator is responsible for generating electricity while the vehicle's engine is running. When the engine is operating, the alternator converts mechanical energy into electrical energy, which is then used to power the vehicle's electrical systems and recharge the batteries. This process ensures that the battery maintains its charge, allowing for smooth vehicle operation and starting after the engine has been turned off.

Choosing any other option would imply either a misunderstanding of the alternator's function or its operational context. The alternator continuously charges the battery as long as the engine is running. It does not solely charge while parked or only during driving; instead, it is the act of the engine being on that allows the alternator to charge the battery effectively.