This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Orthopaedics
[{'content': 'Jaipur foot was invented by \nSelect and explain. \nA. P.K. sethi, B. S.K. verma, C. B.L. sehgal, D. H.R. gupta', 'role': 'user'}, {'content': 'Answer: A \nExplanation: P.K. Sethi. Pramod Karan Sethi (28 November 1927-6 January 2008) was an Indian ohopedic surgeon. With Ram Chandra Sharma, he co-invented the "Jaipur foot", an inexpensive and flexible aificial limb, 1969.(Refer: Mohindra\'s Fundamentals of Ohopedics, 2nd edition, pg no. 466)', 'role': 'assistant'}]