A 52-year-old woman undergoes total thyroidectomy for papillary carcinoma. Postoperatively, she develops facial twitching and paresthesias around her mouth. On examination, blood pressure is 128/82 mmHg, heart rate 92/min, and serum calcium is 7.2 mg/dL (normal 8.5-10.5). Chvostek sign is positive. There is no stridor or hoarseness. The surgeon is most worried about intraoperative damage to which of the following vessels?

1. A)Internal jugular vein
2. B)Facial vein
3. C)Common carotid artery
4. D)Superior and inferior thyroid arteriesGABARITO
5. E)External carotid artery