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': 'The most common ocular motility problem in thyroid myopathy is due to involvement of : \nSelect and explain. \nA. Medial rectus, B. Superior rectus, C. Inferior rectus, D. Inferior oblique', 'role': 'user'}, {'content': 'Answer: C \nExplanation: C i.e. Inferior rectus In thyroid eye disease, the ocular motality defects due to restrictive myopathy (in order of frequency) are -elevation (due to fibrosis of inferior rectus) Q, abduction (due to fibrosis of medial rectus), depression (due to fibrosis of superior rectus) & adduction (due to fibrosis of lateral rectus).', 'role': 'assistant'}]