This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
[{'content': 'Lateral medullary syndrome or Wallenberg syndrome involves all, EXCEPT: \nSelect and explain. \nA. 5th cranial nerve, B. 9th cranial nerve, C. 10th cranial nerve, D. 12th cranial nerve', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ipsilateral cranial nerve involvement (spinal tract of Vth cranial nerve and IX, X, XI cranial nerve) is seen in Wallenberg syndrome. Clinical manifestations of involvement of these cranial nerves are, loss of taste from the posterior third of the tongue (nuclei or fibers of CN IX and X) and reduced corneal reflex, from damage to the descending spinal tract and nucleus of CN V. Ref: Clinical Medicine Made Easy By TV. Devarajan, 2008, Page 213 ; Harrison's Internal Medicine 17th ed Chapter 364 ; Cerebrovascular Diseases, Brainstemdisorders by Peter P Urban, Louis R Caplan page 205-207.", 'role': 'assistant'}]