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': 'Raji cell assay are used to quantitate - \nSelect and explain. \nA. Complement levels, B. Immune complexes, C. T- cells, D. IFN levels', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Immune complexes The Raj i cell asay is used to identify circulating immune complexes. o The assay is based on the ability of lymphoblastoid cells to bind serum immune complex.", 'role': 'assistant'}]