This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Surgery
Common cause of chronic pancreatitis 
Select and explain. 
A. Chronic alcohol, B. Chronic pancreatic calculi, C. pancreas divisum, D. Gall bladder stones
A: Chronic alcohol
Answer: A: Chronic alcohol 
Explanation: "Worldwide, alcohol consumption and abuse is associated with chronic pancreatitis in up to 70% of cases "- REF : BAIELY AND LOVE 37TH ED