This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Physiology
[{'content': 'Berloque dermatitis is due to contact with which of the following? \nSelect and explain. \nA. Plants, B. Food, C. Cosmetics, D. Metal', 'role': 'user'}, {'content': "Answer: B \nExplanation: Berloque dermatitis (or trinketdermatitis) is a special form of phytophotodermatitis caused by exposure to perfumes. These perfumes contain a high concentration of bergapten (5-methoxypsoralens). Berloque dermatitis is rare nowadays, but may arise if an older fragrance is applied to the skin. Ref ganong's review of medical physiology 25e p765", 'role': 'assistant'}]