This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Inflammations of the Cornea, Subject name: Ophthalmology
[{'content': 'Keratitis is caused by - \nSelect and explain. \nA. Bacteria, B. Atopy, C. Protozoa, D. All', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., AH Causes of keratitisInfective keratitisBacterialViralFungalChlamydialProtozoalSpirochaetalAllergic keratitisPhlyctenular keratitisVernal keratitisAtopic keratitisTrophic keratitisExposure keratitisNeuroparalytic keratitisKeratomalaciaAtheromatous ulcerKeratitis associated with diseases of skin and mucous membrane.Keratitis associated with systemic collagen vascular disorders.Traumatic keratitis, which may be due to mechanical trauma, chemical trauma, thermal burns, radiations.Idiopathic keratitis e.g.,Mooren's comeal ulcerSuperior limbic keratoconjunctivitisSuperficial punctate keratitis of Thygeson", 'role': 'assistant'}]