This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Pancreas, Subject name: Surgery
Which of the following types of pancreatitis has the best prognosis? 
Select and explain. 
A. Alcoholic pancreatitis, B. Gallstones induced pancreatitis, C. Post operative pancreatitis, D. Idiopathic pancreatitis
B: Gallstones induced pancreatitis
Answer: B: Gallstones induced pancreatitis 
Explanation: The prognosis is best in patients where pancreatitis is caused by a remediable cause such as cholelithiasis. Eradication of gallstones prevents fuher attacks of pancreatitis.