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: Dental
[{'content': 'Retromylohyoid fossa is an area posterior to mylohyoid muscle and is bounded by retromylohyoid curtain in edentulous mandible. Its posterolateral portion overlies \nSelect and explain. \nA. Superior constrictor muscle, B. Palatoglossus muscle, C. Submandibular gland, D. Mylohyoid muscle', 'role': 'user'}, {'content': 'Answer: A \nExplanation: → Retromylohyoid fossa is an area posterior to mylohyoid muscle and is bounded by retromylohyoid curtain in edentulous mandible.\n→\xa0Posterolateral portion overlies superior constrictor muscle, posteromedial overlies palatogolossus and tongue, and inferior portion overlies submandibular gland.', 'role': 'assistant'}]