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': "All are features of Trachoma stage III, EXCEPT \nSelect and explain. \nA. Herbe's pits, B. Pannus, C. Necrosis in scar, D. Scar on tarsal conjunctiva", 'role': 'user'}, {'content': 'Answer: B \nExplanation: B i.e. Pannus Stage III of trachoma is cicatristing or scarring stage -, so Herbe pits (are healed scars of Herbe follicles), scar on tarsal conjunctiva & necrosis in scar are all the features of stage III where as herbe follicles (Ha), papillary hyperplasia (Ilb), Pannus are found in stage II', 'role': 'assistant'}]