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
Which of the following contains both DNA and RNA? 
Select and explain. 
A. Plasmids, B. Bacteria, C. Prions, D. Viroids
B: Bacteria
Answer: B: Bacteria 
Explanation: Ans. (b) i.e., bacteria Microbe - DNA RNA Protein Bacteria + + + Virus +1-- +/-- Prion Fungi + Parasites Plasmids + -- Viroids Viroids: Plant pathogens that consists of sho, strech of circular single/double standed RNA.