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: Microbiology
[{'content': 'Which of the following statement is true about a hapten? \nSelect and explain. \nA. It induces brisk immune response, B. It needs carrier to induce immune response, C. It is a T-independent Antigen, D. It has no association with MHC', 'role': 'user'}, {'content': 'Answer: B \nExplanation: A hapten is a molecule that is not immunogenic by itself but reacts with a specific antibody after being joined or combined with a suitable molecule called carrier. Ref: Immunology By William L. Anderson, Page 86-87', 'role': 'assistant'}]