The best and most correct answer among the choices provided by the question is the second choice or letter B "<span>OIs are more frequent in the earlier stages of HIV. "</span><span>
</span> Infections<span> that take advantage of weakness in the immune defenses are called “</span>opportunistic.” The phrase “opportunistic infection” is often shortened to “OI<span>.”</span>
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B Mutation i think hope this helped
Mainly because it was extremely hot at the beginning of Earth's time.
the Pacific, Atlantic, Indian, Southern, and Arctic.
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