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': 'Ophthalmia neonatorum is caused by –a) Gonorrhoeab) H. Influenzaec) Chlamydiad) Pseudomonase) Staph. aureus \nSelect and explain. \nA. acde, B. bde, C. abcd, D. abde', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Causative organism of ophthalmia neonatorum :- Common causes are Gonococcus, Chlamydia, HSV.\nOther causes are staphylococcus aureus, pneumococcus, streptococcus, pseudomonas, serratia, klebsiella.\nChemical ophthalmia neonatorum is caused by the use of silver nitrate or antibiotic prophylaxis.', 'role': 'assistant'}]