This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Immunology, Subject name: Microbiology
[{'content': 'Graves disease is an example of which of the following immunologic processes? \nSelect and explain. \nA. Autoimmune disease associated with HLA gene B27, B. Autoimmune disease associated with HLA gene DR3, C. Immune deficiency associated with HLA gene DR2, D. Immune deficiency associated with HLA gene DR4', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. (b)Graves disease is an autoimmune disease that is associated with the presence of the HLA DR3 gene. It is not associated with HLA B 27, DR2, DR4 or Cw6. It does not result from immunodeficiency.', 'role': 'assistant'}]