This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Conjuctiva, Subject name: Ophthalmology
[{'content': "According to WHO, crede's method is applied for prophylactic use in ophthalmia neonatorum, is \nSelect and explain. \nA. Silver nitrate solution, B. Erythromycin ointment, C. Tetracycline ointment, D. Penicilline injection", 'role': 'user'}, {'content': "Answer: A \nExplanation: (Silver nitrate solution): Ref: 164-65-P, 71-KHOPHTHALMIA - NEONATORUM: any discharge or even watering from the eyes in the first week of life should arouse suspion of ophthalmia neonatorum* Use of either 1% tetracycline ointment or 0.5% erythromycin ointment or 1% silver nitrate solution (Crede's method) into the eyes of the babies immediately after birth* Single injection of ceftriazone 50 mg/Kg IV or IV (not to exceed 125 mg) should be given to infants born to mothers with untreated gonococcal infections.", 'role': 'assistant'}]