Which of the following statements best describes an opportunistic infection (oi)?
a.
ois are common only to people with healthy immune systems.
b.
ois are more frequent in the earlier stages of hiv.
c.
ois are the common cause of death of people with hiv/aids.
d.
ois can be deadly to perfectly healthy people.

The best and most correct answer among the choices provided by the question is the second choice or letter B "OIs are more frequent in the earlier stages of HIV. "

 Infections that take advantage of weakness in the immune defenses are called “opportunistic.” The phrase “opportunistic infection” is often shortened to “OI.”

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