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': 'Which is the shortest extra ocular muscle \nSelect and explain. \nA. Superior oblique, B. Inferior oblique, C. Medial rectus, D. Lateral rectus', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Longest EOM - Superior oblique.\nShortest EOM - Inferior oblique.', 'role': 'assistant'}]