<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 70-year-old women presents to her primary care physician with sudden episodes of dizziness that resolve in certain positions. On further questioning she describes a false sense of motion with occasional spinning sensation consistent with vertigo. She denies any recent illnesses or hearing loss aside from presbycusis. Her vital signs are normal. During the physical exam the the patient reports an episode of vertigo after transitioning from sitting to supine and horizontal nystagmus is concurrently noted. What is the mostly likely diagnosis?? A: Vestibular migraine, B: Menieres disease, C: Labyrinthitis, D: Benign Paroxysmal Positional Vertigo BPPV, E: Vestibular neuritis,  <response>: Based on the information provided in the question stem, this appears to be a case of vertigo in an elderly patient. The key details are the episodes of dizziness that resolve with certain positions, sensation of spinning, lack of hearing loss or recent illness, and vertigo and horizontal nystagmus induced by changing from sitting to supine position during the physical exam. This strongly suggests BPPV as the most likely diagnosis, since the symptoms are triggered by specific changes in head position and resolve in certain positions. The lack of hearing loss makes Menieres disease less likely. The episodic nature and lack of preceding illness make vestibular neuritis and labyrinthitis less likely. Vestibular migraine is possible but less likely given the episodic nature clearly tied to changes in head position.D: Benign Paroxysmal Positional Vertigo BPPV 