This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General pathology, Subject name: Pathology
[{'content': "Example of Type IV Hypersensitivity is/are \nSelect and explain. \nA. Farmer's lung, B. Contact hypersensitivity, C. Immediate hypersensitivity, D. Myasthenia gravis", 'role': 'user'}, {'content': 'Answer: B \nExplanation: Clinical examples of Type IV HS TB Sarcoidosis Temporal aeritis Contact dermatitis Lepromin test and PPD Patch test/contact HS Type I DM', 'role': 'assistant'}]