Which combination of observed signs would most strongly indicate alcohol poisoning rather than a simple hangover?

• A. Improved mood and increased talkativeness the next morning, indicating severe systemic toxicity that usually only resolves with chelation therapy.
• B. Mild headache, thirst, and slight fatigue that improve after water and rest, as these are classic signs of alcohol poisoning requiring hospitalization.
• C. Unconsciousness or inability to wake, repeated vomiting with inability to protect airway, and markedly slow or irregular breathing—these indicate alcohol poisoning and need emergency care.
• D. Sustained alertness with normal gait and only a transient headache, which is pathognomonic for alcohol poisoning and mandates liver biopsy.

Answer: (C)