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
Yellowish discolouration of oral mucous membrane, skin and sclera of eye is 
Select and explain. 
A. Pernicious anemia, B. Sickle cell anemia, C. Chloromycin therapy, D. Carotinemia
D: Carotinemia
Answer: D: Carotinemia 
Explanation: None