This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Injuries Around the Thigh & Knee, Subject name: Orthopaedics
[{'content': "Bursa involved in clergyman's knee - \nSelect and explain. \nA. Prepatellar bursa, B. Infrapatellar bursa, C. Olecranon bursa, D. Ischial bursa", 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Infrapatellar bursa Prepatellar bursitisHousemaid's kneeInfrapatellar bursitisClergyman's kneeOlecranon bursitisStudent's elbowIschial bursitisWeaver's bottomOn lateral malleolusTailor's ankleOn great toeBunion", 'role': 'assistant'}]