What is the definition of material arranged to start and feed the initial fire?

The correct definition of material arranged to start and feed the initial fire refers to the term "fuels." Fuels are materials that can combust and provide the necessary energy for a fire to ignite and sustain itself. Common examples include wood, paper, gasoline, and other combustible substances that readily burn when exposed to heat or a spark.

While plants can serve as fuels in the context of natural fires, they do not specifically describe the broader category that includes all types of combustible materials. Igniters involve chemicals or mechanisms that initiate combustion but do not serve as the ongoing source of material for sustaining the fire. Flame accelerants refer to substances that can speed up the burning process, which is not the same as providing the basic fuel necessary for the fire's development. Hence, "fuels" is the most accurate term for the material involved in starting and sustaining a fire.