A patient with chronic alcoholism is admitted for severe agitation, visual disturbances, and diaphoresis 60 hours after cessation of alcohol intake. The ECG shows sinus tachycardia. Which medication should be prioritized to address the patient's current condition?
Give haloperidol to control visual hallucinations.
Administer magnesium sulfate intravenously.
Administer a loading dose of intravenous benzodiazepines.
Provide aggressive intravenous fluid rehydration.