The infection that is NOT an opportunistic infection of HIV among the listed options is Streptococcus aureus. Other options pertain to organisms that commonly cause opportunistic infections in individuals with weakened immune systems, like those with HIV/AIDS.
The answer to the question of which of the following is NOT an opportunistic infection of HIV is D. Streptococcus aureus. While Streptococcus aureus can cause infections in both immunocompetent and immunocompromised individuals, it is not classified as an opportunistic infection in the same way as the others listed, which are more commonly associated with and more likely to cause disease specifically in individuals with weakened immune systems, such as those with HIV/AIDS.
Cryptococcus neoformans, Pneumocystis jiroveci, and Blastocystis hominis are known to cause opportunistic infections in individuals with compromised immune systems, such as those with HIV/AIDS. Cryptococcus neoformans can cause cryptococcosis, leading to life-threatening meningitis if untreated. Pneumocystis pneumonia is caused by P. jirovecii and can be severe in patients with AIDS.