This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General pathology, Subject name: Pathology
HLA B27 is not seen in- 
Select and explain. 
A. SLE, B. Ankylosing spondylitis, C. Reiter's syndrome, D. Psoriotic ahritis
A: SLE
Answer: A: SLE 
Explanation: Harshmohan textbook of pathology 7th edition. SLE is associated with immuno regulatory function of class 2 HLA gene includes HLADR, HLADQ, HLADP..