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: Ophthalmology
[{'content': 'Shoest acting mydriatic is ? \nSelect and explain. \nA. Atropine, B. Homatropine, C. Tropicamide, D. Cyclopentolate', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., Tropicamide", 'role': 'assistant'}]