This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: G.I.T, Subject name: Pathology
Factors that produce acute pancreatitis include all of the following except 
Select and explain. 
A. Alcohol, B. Hypercalcemia of parathyroid origin, C. Gall stones, D. Haemochromatosis
D: Haemochromatosis
Answer: D: Haemochromatosis 
Explanation: The two leading causes associated with acute pancreatitis are alcoholism and cholelithiasis, both of which are implicated in more than 80% of cases. Less common causes of acute pancreatitis include trauma, ischaemia, shock, extension of inflammation from the adjacent tissues, bloodborne bacterial infection, viral infections, ceain drugs (e.g. thiazides, sulfonamides, oral contraceptives), hypothermia, hyperlipoproteinaemia and hypercalcaemia from hyperparathyroidism. Rarely, familial pancreatitis is encountered. In a propoion of cases of acute pancreatitis, the etiology remains unknown (idiopathic pancreatitis). TEXTBOOK OF PATHOLOGY 6TH EDITION HARSH MOHAN PAGE NO:646