This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Misc., Subject name: Microbiology
[{'content': 'The number of bacteria on skin are - \nSelect and explain. \nA. 10l- 102, B. 102- 105, C. 105-1010, D. 1010', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., >1010 It has been calculated that a human adult has about 1012 bacteria on the skin, 1010 in the mouth and 1014 in thegastrointestinal tract. ---------Textbook of bacteriology", 'role': 'assistant'}]