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': 'Large granular lymphocytes are ? \nSelect and explain. \nA. B cells, B. NK cells, C. T cell, D. Plasma cells', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. is \'b\' NK cellsNull cells (Large granular lymphocytes) Null cells are called so because they lack features of surface markers of both B and T lymphocytes.The account for 5 to 10% of peripheral blood lymphocytes.They are also called "large granular lymphocytes (LGL)" as they contain large azurophilic cytoplasmic granules. Members of this group are:a) Antibody dependent cytotoxic cells (ADCC)b) Natural killer cells (NK Cells)', 'role': 'assistant'}]