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': 'Which of the following does not form the anterior triangle of neck? \nSelect and explain. \nA. Carotid triangle, B. Supraclavicular triangle, C. Digastric triangle, D. Muscular triangle', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Anterior triangle of the neck is bounded by the anterior median plane of the neck medially; sternocleidomastoid laterally; base of the mandible and the line joining the angle of mandible to the mastoid process, superiorly. The anterior triangle encloses four suprahyoid and four infrahyoid muscles and is subdivided by the digastric muscle and superior belly of omohyoid into;SubmentalDigastricCarotidMuscular triangle', 'role': 'assistant'}]