Readily combustible solids are described as:

Readily combustible solids are described as:

• A. Phosphorus
• B. Wetted explosives
• C. Self-reactive materials
• D. Readily combustible solids

Answer: (D)

Readily combustible solids is the official label used to categorize solids that ignite easily and burn rapidly under normal conditions. The question isn’t asking for an example material; it’s asking how this category is described in hazard classifications. That’s why the exact phrase "readily combustible solids" is the correct descriptor. Phosphorus is an example of a readily combustible solid, but the term in the question refers to the category’s description, not a specific material. Wetted explosives and self-reactive materials describe other hazard classes, so they’re not the description of this category.

Readily combustible solids is the official label used to categorize solids that ignite easily and burn rapidly under normal conditions. The question isn’t asking for an example material; it’s asking how this category is described in hazard classifications. That’s why the exact phrase "readily combustible solids" is the correct descriptor.

Phosphorus is an example of a readily combustible solid, but the term in the question refers to the category’s description, not a specific material. Wetted explosives and self-reactive materials describe other hazard classes, so they’re not the description of this category.