Which chemical contains living bacteria that digests decaying protein contaminants?

The correct answer is enzyme deodorant because these products contain living bacteria specifically designed to digest decaying organic matter, such as proteins found in stains and odors. Enzyme deodorants work by using these bacteria to break down contaminants enzymatically, resulting in the removal of unpleasant smells and organic residues from carpets or other surfaces.

This type of product is particularly effective for treating problems caused by biological waste, as it not only masks odors (which is what deodorizers typically do), but actively eliminates the source of the odor. The enzymes produced by the bacteria aid in the breakdown of proteins, fats, and carbohydrates, leading to a more thorough cleaning than what basic deodorizing agents provide.

In contrast, other options do not contain living bacteria or focus specifically on digesting decaying materials. Deodorizers primarily cover up odors, disinfectants are aimed at killing germs and bacteria without composition of living organisms, and neutralizers tend to focus on balancing pH levels rather than digesting contaminants. This distinction reinforces why enzyme deodorants are particularly effective in addressing odor problems caused by organic debris.