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: Radiology
"Chain of lakes" appearance on X-ray is seen in: 
Select and explain. 
A. Chronic pancreatitis, B. Acute pancreatitis, C. Carcinoma head of pancreas, D. Adenocarcinoma
A: Chronic pancreatitis
Answer: A: Chronic pancreatitis 
Explanation: Ans. Chronic pancreatitis