This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Diseases of orbit, Lids and lacrimal apparatus, Subject name: Ophthalmology
[{'content': "Last ocular muscle to be involved in Grave's disease- \nSelect and explain. \nA. Inferior rectus, B. Lateral rectus, C. Superior rectus, D. Inferior oblique", 'role': 'user'}, {'content': 'Answer: D \nExplanation: Last ocular muscle to be involved in graves disease inferior oblique muscles Ref khurana 6/e 350', 'role': 'assistant'}]