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
[{'content': "Which of the following is not a Type I hypersensitivity reaction \nSelect and explain. \nA. Casoni's test, B. Food allergy, C. Prausnit2 - Kastner reaction, D. Contact dermatitis", 'role': 'user'}, {'content': 'Answer: D \nExplanation: Contact dermatitis is Type IV hypersensitivity reaction.', 'role': 'assistant'}]