<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 33-year-old man presents to the emergency department with dizziness. He states he has experienced a sustained sense of disequilibrium for the past 2 days. He feels that the floor is unstablemoving. The patient is otherwise healthy and does not have any other medical diagnoses. The patient is currently taking vitamin C as multiple family members are currently ill and he does not want to get sick. His temperature is 98.1F 36.7C, blood pressure is 12083 mmHg, pulse is 73min, respirations are 16min, and oxygen saturation is 98 on room air. Physical exam is notable for a horizontal nystagmus. The Dix-Hallpike maneuver does not provoke symptoms and examination of the patients cranial nerves is unremarkable. Which of the following is the most likely diagnosis?? A: Benign paroxysmal positional vertigo, B: Labyrinthitis, C: Meniere disease, D: Vertebrobasilar stroke, E: Vestibular neuritis,  <response>: Based on the information provided in the question stem, the key findings are:- 33-year-old man with 2 days of sustained dizziness and sense of disequilibrium - No other medical conditions or medications except vitamin C- Vital signs are normal- Physical exam showed horizontal nystagmus- Dix-Hallpike test was negative- No cranial nerve abnormalitiesThis presentation is most consistent with an acute unilateral peripheral vestibular dysfunction given the acute onset vertigo, horizontal nystagmus, and negative Dix-Hallpike test. The differential diagnosis includes:- Vestibular neuritis: inflammation of the vestibular nerve, most likely diagnosis given acute presentation- Labyrinthitis: inflammation of inner ear, less likely given lack of hearing changes- Vertebrobasilar stroke: unlikely given no other neurologic deficits and normal exam- Menieres disease: recurrent episodes of vertigo, hearing changes, unlikely with first acute episode- BPPV: provoked vertigo with position changes, negative Dix-Hallpike makes this unlikelyE: Vestibular neuritis 