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: ENT
[{'content': 'Olfactory area commonly looks - \nSelect and explain. \nA. Pink colour, B. Yellow colour, C. Greyish white colour, D. Blue colour', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]