<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 37-year-old woman presents to the emergency department with a chief complaint of severe pain in her face. She states that over the past week she has experienced episodic and intense pain in her face that comes on suddenly and resolves on its own. She states she feels the pain over her cheek and near her eye. The pain is so severe it causes her eyes to tear up, and she is very self conscious about the episodes. She fears going out in public as a result and sometimes feels her symptoms come on when she thinks about an episode occurring while in public. While she is waiting in the emergency room her symptoms resolve. The patient has a past medical history of diabetes, constipation, irritable bowel syndrome, and anxiety. She is well known to the emergency department for coming in with chief complaints that often do not have an organic etiology. Her temperature is 99.5F 37.5C, blood pressure is 177108 mmHg, pulse is 90min, respirations are 17min, and oxygen saturation is 98 on room air. Cardiopulmonary and abdominal exams are within normal limits. Neurological exam reveals cranial nerves II-XII are grossly intact. The patients pupils are equal and reactive to light. Pain is not elicited with palpation of the patients face. Which of the following is the best initial step in management?? A: Alprazolam, B: Carbamazepine, C: High flow oxygen, D: Ibuprofen, E: Regular outpatient follow up,  <response>: This is a clinical vignette about a 37-year-old woman presenting to the emergency department with severe episodic facial pain near her eye and cheek. Important details in the history include:- Pain is sudden onset, intense, and self-resolving - Occurs episodically over the past week- Triggers tearing and self-consciousness about episodes in public- Past medical history of diabetes, constipation, IBS, and anxiety- Frequent ED visitor with complaints often without organic etiology- Vital signs show hypertension but otherwise unremarkable - Physical exam is normal including neurological examThis presentation is most consistent with trigeminal neuralgia, which causes episodic electric shock-like facial pain along the trigeminal nerve distribution. The history and normal neurological exam make this the most likely diagnosis.Options A and D are medications that may treat pain but are not indicated as initial management. Option C, high flow oxygen, is unrelated to the presentation. Option E, outpatient follow up, delays necessary acute treatment. Option B, carbamazepine, is an anticonvulsant used as first-line treatment for trigeminal neuralgia. It is the best initial management step.B: Carbamazepine 