Fires that involve combustible and flammable materials are classified as which classes?

Fires involving combustible and flammable materials are classified into specific categories based on the materials that are burning. Class A fires involve ordinary combustibles like wood, paper, and cloth. Class B fires pertain to flammable liquids and gases, such as gasoline, oil, and solvents. Class D fires are associated with combustible metals, which can burn at extremely high temperatures and often require special handling and extinguishing techniques.

In this context, the correct classification incorporates Class A and Class B due to the mention of combustible and flammable materials. The inclusion of Class D further indicates a more comprehensive understanding that covers various types of hazards pertinent to different industries. Therefore, the correct answer accurately reflects the comprehensive approach needed to address different fire types involving combustible and flammable materials effectively.