This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Heart, Circulation, and Blood, Subject name: Physiology
[{'content': 'Pericytes are seen in- \nSelect and explain. \nA. Arteries, B. Veins, C. Capillaries, D. All of theaove', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., Capillaries o Pericytes are seen in capillaries and postcapillary venules.o Pericytes are contractile cellso They are more common in venules than in capillaries.", 'role': 'assistant'}]