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: Medicine
A patient of esophageal varices with liver span of 19cm. Likely causes - 
Select and explain. 
A. Haemochromatosis, B. Alcoholic liver disease, C. Budd- chiary syndrome, D. All of the above
D: All of the above
Answer: D: All of the above 
Explanation: None