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: Anatomy
[{'content': "Frieberg's disease involve - \nSelect and explain. \nA. Tibial tuberosity, B. Calcaneal tuberosity, C. 2nd metatarsal, D. 5th metarasal", 'role': 'user'}, {'content': "Answer: C \nExplanation: *Frieberg's disease is osteochondritis of 2nd metatarsal head. Ref: Appley's 9th/e p.723", 'role': 'assistant'}]