Some viruses, such as the human immunodeficiency virus (HIV), are RNA viruses. Since these viruses do not contain DNA, how do they incorporate into the host cell's chromosome?

A. These viruses have a special type of RNA that is able to bond with the cell's DNA.

B. These viruses attach to one complimentary nitrogenous base of DNA to form RNA.

C. These viruses use steroids, carbohydrates, and lipids to convert RNA into DNA.

D. These viruses use the enzyme reverse transcriptase to convert RNA into DNA.