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: ENT
[{'content': "Bezold's abscess is located in ? \nSelect and explain. \nA. Submandibular region, B. Sternocleidomastoid, C. Digastric triangle, D. Infratemporal region", 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b i.e., Sternomastoid muscle A Bezold abscess is a complication of acute otomastoiditis where the infection erodes through the coex medial to the attachment of sternocleidomastoid, at the attachment site of the posterior belly of the digastric muscle, and extends into the infratemporal fossa.", 'role': 'assistant'}]