Which of the following is correct regarding AIDS causative HIV?
- AHIV does not escape but attacks the acquired immune response.
- BHIV is enveloped virus containing one molecule of single-stranded RNA and one molecule of reverse transcriptase.
- CHIV is enveloped virus that contains two identical molecules of single-stranded RNA and two molecules of reverse transcriptase.
- DHIV is unenveloped retrovirus.