Decontamination facilities must be equipped at a minimum with _____________.

The correct answer emphasizes the importance of having sufficient resources for both routine and emergency washing. Decontamination facilities, especially in contexts involving pesticides, must prioritize the health and safety of individuals who may be exposed to harmful substances. The inclusion of sufficient water, soap, and single-use towels indicates a comprehensive approach to hygiene—allowing for effective cleaning of the hands and face as a routine practice, while also providing emergency resources for washing the entire body if needed.

In emergencies, time is critical, and the ability to quickly wash off contaminants can greatly reduce health risks. The mention of "sufficient water" signifies that a robust supply is vital, as a minimal amount may not be effective in completely decontaminating exposed areas, especially for more serious incidents. This option thus encompasses the broader spectrum of decontamination needs, ensuring facilities are prepared for various situations that require immediate attention.