What type of materials can be defined as starting and feeding fires?

The correct answer encompasses a variety of items that can initiate and maintain combustion. Candles, matches, and electrical materials are all capable of starting and feeding fires due to their inherent properties.

Candles provide both a source of ignition and a steady heat output as they burn, while matches are specifically designed to ignite, making them direct fire-starting tools. Electrical materials, which can include wiring, appliances, and other components, often serve as ignition sources due to faults or failures leading to overheating or sparking, thereby feeding flames once a fire has started.

This answer highlights the diverse range of materials that can both initiate a fire and contribute to its continued burning, recognizing that it is not limited only to one type of material or a specific category. Other options, which limit fire-starting materials to more specific or narrow categories, do not capture the full scope of potential fire sources.