Which of the following types of surfaces can benefit from a non-porous sealing compound?

Non-porous sealing compounds are specifically designed to protect surfaces from moisture and contaminants by creating a barrier that prevents penetration. Concrete surfaces often have a porous nature, allowing water, chemicals, and other substances to seep into them, which can lead to damage and odors. Applying a non-porous sealing compound to concrete surfaces effectively enhances their durability and resistance to stains and odors, making it a beneficial treatment option.

In contrast, wooden surfaces are porous but typically require sealing compounds that can accommodate their expansion and contraction, while also allowing for some breathability to prevent moisture buildup. Fabric surfaces don't benefit from sealing compounds in the same way since they require different types of cleaning and deodorization methods suitable for textiles. Travertine tiles, while they can be sealed, often require a specific type of penetrating sealer as they are more delicate and can be affected by the harsh chemicals present in non-porous sealing compounds.

Thus, the choice pertaining to concrete surfaces aligns with the function and purpose of non-porous sealing compounds, making it the most appropriate answer for this question.