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: Pathology
Which of the following is the most common cause for fulminant hepatitis 
Select and explain. 
A. Hepatitis A, B. Hepatitis B, C. Hepatitis C, D. Hepatitis D
D: Hepatitis D
Answer: D: Hepatitis D 
Explanation: Hepatitis D is the most common cause of Fulminant Hepatitis.