This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Medicine
[{'content': "Wernicke's hemianopic pupillary response is seen in the lesion of \nSelect and explain. \nA. Optic tract, B. Optic chiasma, C. Optic radiation, D. Lateral geniculate body", 'role': 'user'}, {'content': "Answer: A \nExplanation: Wernick's hemianopic pupil is caused by the division of the optic tract that results in a contralateral homonymous hemianopiaPrimary lesions of the optic tract are very rare and the tract is usually disturbed by compression. The common causes areChordomasPituitary adenomasTentorial meningiomasTemporal lobe gliomasAneurysms of upper basilar distribution or on the superior cerebellar aeries or posterior cerebral aeriesRef: Parson 19/e p528,120", 'role': 'assistant'}]