This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Virology, Subject name: Microbiology
Adenovirus 
Select and explain. 
A. Double stranded DNA, B. Enveloped, C. Complex symmetry, D. None
A: Double stranded DNA
Answer: A: Double stranded DNA 
Explanation: (Double stranded DNA) (486- 87- A 7th)ADENOVIRUSES - are group of medium sized, non enveloped' double stranded DNA viruses that share a common complement fixing antigen. They infect humans, animals, and birds, showing strict host specificity* The vision has the appearance of a space vehicle* Acute hemorrhagic cystitis in children -associated with adenovirus -11* Generalized exanthem - associated with Adenovirus - 21