Which of the following materials is considered flammable?

• A. Glue
• B. Oil
• C. Paint
• D. All of the above

Answer: (D)

Verified step by step guidance

1. Understand the definition of flammability: A material is considered flammable if it can easily catch fire and burn in the presence of an ignition source.
2. Analyze each material individually: Glue, oil, and paint all contain organic compounds that can vaporize and ignite under certain conditions.
3. Recall that many types of glue contain solvents that are volatile and flammable, making glue a flammable material.
4. Recognize that oils, especially those derived from petroleum or plant sources, are combustible and can catch fire, classifying them as flammable.
5. Know that paint often contains flammable solvents or components that can ignite, so paint is also considered flammable.