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 seronegative spondyloarthropathy? \nSelect and explain. \nA. Reiter's arthritis, B. Ankylosing spondylitis, C. Psorialic arthritis, D. Rheumatoid arthritis", 'role': 'user'}, {'content': "Answer: D \nExplanation: Seronegative spondyloarthroparthies are group of disorders with involvement of sacroiliac joint and associated with HLA-B27.\nRheumatoid arthritis doesn't belong to this group.", 'role': 'assistant'}]