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 of Sartorius, gracilis, and semi-tendinosus muscles forms a Pes Anserinus at the neck of tibia. Similar kind of structure is also seen in? \nSelect and explain. \nA. Parotid, B. Submandibular, C. Cheek, D. TMJ', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]