How much water is required to be on hand as part of the facility's emergency supplies?

The correct answer emphasizes the need for a sufficient supply of water for both preparation and drinking as part of emergency supplies in an assisted living facility. This comprehensive approach ensures that residents can meet their hydration needs while also being able to prepare food safely, which is crucial in times of emergency when services may be disrupted.

The focus on having an adequate water supply reflects best practices in emergency preparedness, recognizing that both drinking water and water for cooking are essential. This ensures that residents remain hydrated and can also consume safe and nutritious meals, which is especially important for individuals in assisted living who may have specific dietary needs.

While other options might suggest specific amounts or durations of water supply, the principle of maintaining a sufficient reserve for multiple purposes ultimately enhances the safety and well-being of the facility's residents during emergencies.