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: Unknown
[{'content': 'Regarding extra uterine endometriosis, false is: \nSelect and explain. \nA. It is hormone dependent, B. May involve pleura and lung, C. Commonest site is ovary, D. Ovary contains cyst with clear fluid', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Endometriosis-Incidence is 10%. It is defined as presence of functioning uterine glands and stroma in any site outside the uterus. It is responsive to ovarian hormones.\nPathologically characterized by red disk, bluish or blackish cystic areas-Scarring gives puckered look.\nMost important finding is chocolate cysts of ovary (2cm in diameter to size of foetal head) with hemosiderin laden pseudoxanthoma cells.', 'role': 'assistant'}]