You should check with a guardian or mentor
The answer is d. all of the above
The answer is C I hope it helps.
AIDS is the most severe phase of HIV infection, when a person’s immune system is severely weakened. When HIV weakens the immune system opportunistic infections occur in the body. The low number of helper T cells in the blood and the badly damaged immune systems leads the infected to get an increasing number of severe illnesses, called opportunistic illnesses. Opportunistic infections are infections caused by pathogens that take advantage of an opportunity not normally available.