<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:An otherwise healthy 58-year-old man comes to the physician because of a 1-year history of episodic coughing whenever he cleans his left ear. There is no history of hearing loss, tinnitus, or vertigo. Stimulating his left ear canal with a cotton swab triggers a bout of coughing. The physician informs him that these symptoms are caused by hypersensitivity of a cranial nerve. A peripheral lesion of this nerve is most likely to manifest with which of the following findings on physical examination?? A: Inability to raise ipsilateral eyebrow, B: Ipsilateral deviation of the tongue, C: Decreased secretion from ipsilateral sublingual gland, D: Ipsilateral vocal cord palsy, E: Ipsilateral sensorineural hearing loss,  <response>: This is a clinical vignette describing a patient with episodic coughing triggered by stimulating the left ear canal, indicating hypersensitivity of a cranial nerve supplying the left ear. The question asks which physical exam finding would result from a peripheral lesion of this cranial nerve. Based on the symptom of coughing triggered by left ear stimulation, the affected cranial nerve is likely the vagus nerve CN X. A peripheral lesion of CN X could cause findings such as ipsilateral vocal cord palsy or decreased secretion from the ipsilateral sublingual gland. The other options describe findings related to lesions of other cranial nerves.D: Ipsilateral vocal cord palsy 