A 78-year-old man with advanced dementia presents to the ED in respiratory distress. Vital signs: BP 128/76, HR 102, RR 28, SpO2 78% on room air. Chest X-ray shows bilateral infiltrates consistent with pneumonia. He denies chest pain. His living will explicitly states he refuses intubation. His daughter demands aggressive intervention and intubation. He is not on mechanical ventilation currently. What is the most appropriate action?

1. A)Discharge the patient
2. B)Intubate per daughter request
3. C)Follow the living willGABARITO
4. D)Consult the ethics committee before any action
5. E)Wait for another family member