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: Pathology
[{'content': 'Endodermal sinus tumour is characterized by ? \nSelect and explain. \nA. Schiller-Duval body, B. Psammoma body, C. Call-Exner bodies, D. Homer-Wright rosettes', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Schiller-Duval body", 'role': 'assistant'}]