This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Stroke and TIA, Subject name: Medicine
[{'content': "B/L Occlusion of distal branches of PCA leads to: \nSelect and explain. \nA. Parinaud's syndrome, B. Weber's syndrome, C. Anton's syndrome, D. Benedikt syndrome", 'role': 'user'}, {'content': "Answer: C \nExplanation: Anton's syndrome: Visual anosognosia associated with confabulation in the setting of obvious visual loss and coical blindness Due to B/L Occlusion of distal branches of PCA. Parinaud's syndrome: Triad of upgaze paralysis, convergence retraction nystagmus, pupillary light-near dissociation. Weber's syndrome: Presence of an ipsilateraloculomotor nerve palsy Contralateral hemiparesis or hemiplegia due to occlusion of P1 PCA. Benedikt syndrome: Lesion in Red nucleus and 3rd n. nucleus I/L 3rd N. palsy, C/L chorea and resting tremors.", 'role': 'assistant'}]