A person infected with the human immunodeficiency virus (HIV) may not have any symptoms for an extended period of time. This information suggests that the reproductive cycle of the HIV virus is —

1. lysogenic, because the virus develops over a long period of time
2. lytic, because the virus causes an autoimmune disease and eventually death
3. lysogenic, because the virus primarily affects older people
4. lytic, because of the quick onset of symptoms after infection