Respuesta :
The answer you would be looking for is B because Retrovirus is a single strand of a RNA virus.
Answer:
D. lysogenic viruses
Explanation:
You have two big groups of viruses: DNA viruses and RNA viruses.
Within each group, there are subtypes according to which process they do to replicate genetic material into the host cell.
Retrovirus is a kind of RNA virus.
Lysogenic is not a type of virus it is one of two cycles of reproduction.