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: Pediatrics
[{'content': 'Which among the following is not an autoimmune disease \nSelect and explain. \nA. Myasthenia gravis, B. Systemic lupus erythematosus, C. Sickle cell disease, D. graves diesease', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Sickle cell disease is a genetic condition which is characterized by mutation in beta globin chain of hemoglobin (glutamic acid is replaced with valine in the 6th position of beta chain).\n• Other given choices like SLE, Graves and MG are all autoimmune conditions', 'role': 'assistant'}]