This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Immunology, Subject name: Pathology
[{'content': 'Toll like receptors, recognize bacterial products and stimulates immune response by: \nSelect and explain. \nA. Perforin and granzyme mediated apoptosis, B. FADD ligand apoptosis, C. Transcription of nuclear factor mediated by NF-kB which recruits cytokines, D. Cyclin', 'role': 'user'}, {'content': "Answer: C \nExplanation: Toll-like receptors They are membrane proteins that recognize a variety of microbe-derived molecules and stimulate innate immune responses against the microbes. These derive there name due to homology to a Drosophila protein called 'Toll'. The Toll-like receptors are expressed on many immune cells of the body. Signaling by Toll-like receptors results in the activation of transcription factors, notably NF-kB and AP-1.", 'role': 'assistant'}]