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': 'The tendon running in the groove below Sustentaculum tali \nSelect and explain. \nA. Tibialis posterior, B. Flexor digitoram longus, C. Flexor hallucis longus, D. Peroneus tertius', 'role': 'user'}, {'content': 'Answer: C \nExplanation: The tendon running in the groove below Sustentaculum tali.\nFlexor hallucis longus', 'role': 'assistant'}]