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
[{'content': 'Factors impoant in the formation of gall stones include all of the following except \nSelect and explain. \nA. Cholesterol saturation in bile, B. Gall bladder motility, C. The size of micelles, D. Obesity', 'role': 'user'}, {'content': 'Answer: C \nExplanation: risk factors of gall stone A) advancing age B)female sex hormone C) obesity D)acquierd disorders such as gallblader stasis E)hereditory factor F)metabolic abnormality such as DM, hyperlipidemia and PBC GENERAL AND SYSTEMIC PATHOLOGY RAMDAS NAYAK PGNO.475', 'role': 'assistant'}]