<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 45-year-old woman comes to the physician for a 3-week history of intermittent episodes of dizziness. The episodes last for hours at a time and are characterized by the sensation that the room is spinning. The patient also reports that she has started using her cell phone with her left ear because she hears better on that side. She has experienced intermittent ringing and fullness in her right ear. She has no history of serious medical conditions. She does not smoke or drink alcohol. She takes no medications. Her temperature is 37.1C 98.8F pulse is 76min respirations are 18min, and blood pressure is 13076 mm Hg. Cardiopulmonary examination shows no abnormalities. There is horizontal nystagmus to the right. Motor strength is 55 in all extremities, and sensory examination shows no abnormalities. Finger-to-nose and heel-to-shin testing are normal bilaterally. Weber test shows lateralization to the left ear. The Rinne test is positive bilaterally. Which of the following is the most likely cause of this patients symptoms?? A: Demyelinating plaques, B: Occlusion of the posterior inferior cerebellar artery, C: Reduced resorption of endolymph, D: Cerebellopontine angle tumor, E: Obstruction of the anterior inferior cerebellar artery,  <response>: Based on the patients symptoms of intermittent dizziness, vertigo, tinnitus, and hearing loss in the right ear, as well as the physical exam findings of horizontal nystagmus to the right and lateralization of the Weber test to the left, the most likely diagnosis is a disorder involving the right inner ear. The positive Rinne test bilaterally rules out conductive hearing loss. The symptoms and exam findings localize to the right inner ear. Occlusion of a cerebellar artery would not cause these unilateral inner ear symptoms. Demyelinating plaques and a cerebellopontine angle tumor could cause these symptoms but are less likely in this otherwise healthy patient with no other neurologic deficits. Reduced resorption of endolymph in the inner ear can lead to episodic vertigo, tinnitus, and hearing loss, consistent with Menieres disease. This explains her symptoms better than the other choices.C: Reduced resorption of endolymph 