This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pharmacology
Drug therapy used in treatment of Wernicke's encephalopathy : 
Select and explain. 
A. Diazepam, B. Disulfiram, C. Thiamine, D. Cynocobalamine
C: Thiamine
Answer: C: Thiamine 
Explanation: None