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: Microbiology
[{'content': "All of the following are seen in the Horner's syndrome, Except \nSelect and explain. \nA. Drooping of upper eyelid, B. Enophthalmos, C. Dilated pupil, D. Loss of sweating on same side of face", 'role': 'user'}, {'content': 'Answer: C \nExplanation: Horner&;s syndromeClinical featuresLess common featuresPtosisHyperactive accommodationMiosis Hypochromic heterochromiaAnhydrosisHypotonyEnophthalmosHyperemiaLoss of ciliospinal reflexes', 'role': 'assistant'}]