This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: FMGE 2018, Subject name: Ophthalmology
[{'content': 'Drug of choice in eye in trachoma endemic areas? \nSelect and explain. \nA. Erythromycin, B. Ganciclovir, C. Clindamycin, D. Azithromycin', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Azithromycin is the drug of choice in treatment of trachoma in endemic areas Erythromycin, ganciclovir and tetracyclines are used topically In blanket therapy or mass therapy of trachoma In endemic zone 1% tetracycline ointment OD x 10 days x 6 months is prescribed', 'role': 'assistant'}]