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': 'Bacteria may acquire characteristics by all of the following except - \nSelect and explain. \nA. Taking up soluble DNA fragments across their cell wall from other species, B. Incorporating part of host DNA, C. Through bacteriophages, D. Through conjugation', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]