This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Staphylococci, Subject name: Microbiology
[{'content': 'Which among the following organism is found as a commensal on skin? \nSelect and explain. \nA. Staph aureus, B. Strept pyogenes, C. Clostridium, D. Borrelia', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Anss: a) Staph minusEven though skin, vagina, axilla, perineum are colonised by staphylococcus, most frequent site of human colonisation is anterior nares.', 'role': 'assistant'}]