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': 'What will be the prescription of spectacles in a patient having simple hypermetropia with the rule astigmatism? \nSelect and explain. \nA. -2D at 180o, B. -0.5 at 90o, C. +1D at 90o, D. +3D at 180o', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Patient has Hypermetropia, hence plus lens should be used.\nWith the rule astigmatism => Vertical meridian more curved than horizontal meridian.\nHence, +3D at 180o\xa0in used.', 'role': 'assistant'}]