Which of the following is a common usage for enzyme deodorants?

Enzyme deodorants are specifically designed to target and break down organic matter, which is a significant source of odors in various environments, including carpets and upholstery. The enzymes in these deodorants act as catalysts that speed up the natural process of decomposition. As they digest the organic materials, such as food residues, urine, or sweat, they effectively neutralize the odors associated with these substances rather than merely masking them with fragrances.

The other options do not align with the primary function of enzyme deodorants. For instance, cleaning electronics involves the use of specialized non-conductive cleaners that do not contain enzymes meant for odor management. Polishing metals typically utilizes abrasive or chemical agents specifically formulated for that purpose, which is unrelated to the deodorizing function of enzymes. Enhancing fragrances pertains more to fragrance additives or essential oils rather than the enzymatic action necessary for breaking down organic compounds. Hence, the correct choice highlights the primary role of enzyme deodorants in addressing odor sources by digesting organic matter.