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': 'HLA associated with psoriasis ? \nSelect and explain. \nA. HLA-B27, B. HLA-DR4, C. HLA-CW6, D. HLA-B8', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., HLA-CW6", 'role': 'assistant'}]