Which fire extinguisher is best for a fire started with newspapers in an overhead bin?

When it comes to extinguishing a fire that has originated from newspapers, which are classified as solid combustibles, the most effective method involves using water. A water fire extinguisher operates by cooling the burning materials and reducing the temperature below the ignition point. Since newspapers ignite easily and can burn fiercely, water can help to quickly and effectively suppress such fires.

In contrast, the other options, such as the foam fire extinguisher, are more suited for flammable liquid fires. A dust fire extinguisher is generally used for metal fires but is not designed for typical combustibles like paper. The ABC fire extinguisher, while versatile and effective against various fire types, including wood and paper, might not provide the immediate cooling effect necessary for quickly controlling a small paper fire, particularly in a confined space like an overhead bin. The water fire extinguisher is therefore the best choice for this scenario.