Which of the following best describes decontamination?

Decontamination refers to the process of removing hazardous materials from a person, object, or environment to prevent exposure or contamination. This process is essential in emergency medical situations, particularly when dealing with hazardous substances or biological agents. By effectively removing these hazards, decontamination helps ensure the safety of both the patient and the responders, reducing the risk of further injury or contamination.

The other options do address important aspects of emergency response and care, but they do not accurately define decontamination. Protection from pathogens relates more to infection control practices; management of stress in responders pertains to mental health and operational support; handling psychological arousal deals with emotional and psychological responses to stress. Each of these is crucial in emergency care, but they are not synonymous with decontamination.