This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nose and PNS, Subject name: ENT
[{'content': 'A patient with complete anosmia will still respond to inhalation of: \nSelect and explain. \nA. Coffee, B. Ammonia, C. Vanilla, D. Garlic', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Smell of coffee, vanilla and garlic is sensed by olfactory system. Vapours of ammonia are so strong that they stimulate somatic sensory fibres (V nerve). Ammonia is never used to test sense of smell.', 'role': 'assistant'}]