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
Thyroid ophthalmopathy associated with all except 
Select and explain. 
A. External ophthalmoplegia, B. Proptosis, C. Large extraocular muscle, D. Lid lag
A: External ophthalmoplegia
Answer: A: External ophthalmoplegia 
Explanation: Internal muscles are not involved in thyroid ophthalmopathy Refer khurana 6/e