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': "'A' pattern squint is due to which muscle \nSelect and explain. \nA. Superior rectus, B. Inferior rectus, C. Superior oblique, D. Inferior oblique", 'role': 'user'}, {'content': 'Answer: C \nExplanation: A pattern squint - superior oblique.\nV pattern squint - inferior oblique.', 'role': 'assistant'}]