Which statement describes an important property of oil for finishing wood?

The statement that oil enhances the natural finish of the wood accurately captures a key property of oils used for finishing. When applied to wood, oil penetrates the fibers, enriching the grain and bringing out the natural color and texture of the wood. This enhances not only the aesthetic appeal but also provides a level of protection against moisture and wear.

In contrast, the other statements do not accurately reflect important properties of oils used for wood finishing. For example, the notion that oil is only clear in color undermines the variety of oils available that can have distinct hues, affecting the final appearance. The idea that oil is water-soluble is incorrect, as most wood finishing oils are not soluble in water; they are typically oil-based and require solvents for cleanup. Lastly, the notion that oil dries immediately is misleading; oils usually take time to penetrate the wood and cure, rather than drying instantly.

Thus, the capacity of oil to enhance the natural finish of the wood makes it a popular choice for wood finishing applications.