This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Investigation in ophthalmology and miscellaneous topics, Subject name: Ophthalmology
[{'content': 'Which is the most common ocular manifestation of Thyroid Eye disease? \nSelect and explain. \nA. Exophthalmos, B. Lid retraction, C. Congestion of blood vessels over the inseion of the lateral rectus, D. Corneal exposure keratopathy', 'role': 'user'}, {'content': "Answer: B \nExplanation: Lid signs: Retraction of the upper lids producing the characteristic staring and frightened appearance (Dalrymple's sign); Lid lag (von Graefe's sign) i.e., when globe is moved downward, the upper lid lags behind Fullness of eyelids due to puffy oedematous swelling (Enroth's sign) Difficulty in eversion of upper lid (Gifford's sign). Most common amongst these is lid retraction producing the characteristic staring look.", 'role': 'assistant'}]