IDNLearn.com provides a comprehensive solution for all your question and answer needs. Find reliable solutions to your questions quickly and easily with help from our experienced experts.

The HIV viruses belong to the _______ family, subfamily ________.
(a) Retroviridae, Orthoretrovirinae
(b) Retroviridae, Vitroviridae
(c) Viridae, Orthoretrovirinae
(d) Viridae, Vitroviridae