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: Pathology
[{'content': 'Yellowish discolouration of oral mucous membrane, skin and sclera of eye is \nSelect and explain. \nA. Pernicious anemia, B. Sickle cell anemia, C. Chloromycin therapy, D. Carotinemia', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]