Which decontamination method should be used to remove spot contamination?

Adhesive tape is the most appropriate method for removing spot contamination due to its effectiveness in physically lifting and removing particles or contaminants from surfaces. When applied to contaminated areas, the adhesive properties of the tape can capture small particles without spreading them further, making it particularly useful for spot contamination where precision is required. This method is often recommended in radiation safety protocols because it minimizes the risk of dispersing radioactive materials into the surrounding environment.

In contrast, the other options may not be as effective for this specific task. A neutralizing agent typically refers to a chemical used for neutralizing specific types of contaminants, such as hazardous chemicals rather than for physically removing particles. Disinfectant solutions are generally utilized for cleaning and disinfection purposes, which may not specifically target spot decontamination or could require more extensive cleanup methods. A wet cloth might spread the contamination rather than effectively lifting it, particularly if the cloth is not used appropriately or if it's not designed for capturing small particulate contaminants.

Therefore, adhesive tape stands out as the preferred method in this context for efficiently handling spot contamination.