This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Microbiology
[{'content': "Bacterial count in doudenum \nSelect and explain. \nA. 105 per gram, B. 10' per gram, C. 1010 per gram, D. 10'2 per gram", 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. is \'a\' i.e., 105 per gram In GIT of an adult : Duodenum - -4 103 - 106 bacteria per gram. Jejunum and proximal ileum - 10\' - 108 bacteria per gram Lower ileum and cecum - 108 - 1010 bacteria per gram Colon and rectum - 10" - 1012 bacteria per gram Colon and rectum have maximum number of bacteria and most of them (96-99%) are anaerobes : Anaerobic streptococci Clostridia Anaerobic lactobacilli Bacteroides', 'role': 'assistant'}]