This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Cirrhosis, Subject name: Medicine
Most common cause of congestive splenomegaly is? 
Select and explain. 
A. Chronic congestive cardiac failure, B. Cirrhosis, C. Hepatic vein occlusion, D. Stenosis of splenic vein
B: Cirrhosis
Answer: B: Cirrhosis 
Explanation: Congestive splenomegaly is common in patients with severe poal hypeension. Poal hypeension is the major complication of cirrhosis.