<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 58-year-old man with type 2 diabetes mellitus comes to the emergency department because of a 2-day history of dysphagia and swelling in the neck and lower jaw. He has had tooth pain on the left side over the past week, which has made it difficult for him to sleep. Four weeks ago, he had a 3-day episode of flu-like symptoms, including sore throat, that resolved without treatment. He has a history of hypertension. Current medications include metformin and lisinopril. He appears distressed. He is 180 cm 5 ft 11 in tall and weighs 100 kg 220 lbs; his BMI is 31.6 kgm2. His temperature is 38.4C 101.1F, pulse is 90min, and blood pressure is 11080 mm Hg. Oral cavity examination shows a decayed lower left third molar with drainage of pus. There is submandibular and anterior neck tenderness and swelling. His leukocyte count is 15,600mm3, platelet count is 300,000mm3, and fingerstick blood glucose concentration is 250 mgdL. Which of the following is the most likely diagnosis?? A: Angioedema, B: Lymphadenitis, C: Peritonsillar abscess, D: Sublingual hematoma, E: Ludwig anginan,  <response>: This is a question about diagnosing a patient with neck swelling and tooth pain. The key facts are:- 58-year-old man with diabetes - 2-day history of dysphagia and neckjaw swelling- Tooth pain on left side for 1 week- Flu-like illness 4 weeks ago- Decayed lower left third molar with pus drainage- Neck tenderness and swelling- Fever, leukocytosis, high glucoseE: Ludwig angina 