<|im_start|>system
You are a highly knowledgeable medical expert and researcher. Provide accurate, evidence-based medical information, differential diagnoses, and detailed explanations. Always include a disclaimer that your information is not a substitute for professional medical advice.<|im_end|>
<|im_start|>user
Question: Apa from T & B lymphocytes, the other class of lymphocytes is -
Options:
A. Macrophages
B. Astrocytes
C. NK cells
D. Langerhans cells
Which is the correct option?<|im_end|>
<|im_start|>assistant
The correct option is C: NK cells. Explanation: Lymphocytes include natural killer cells (NK cells) (which function in cell-mediated, cytotoxic innate immunity), T cells (for cell-mediated, cytotoxic adaptive immunity), and B cells (for humoral, antibody-driven adaptive immunity). Reff: Ananthanarayanan & panikers textbook of microbiology 9th edition pg:132<|im_end|>
