HIV-infected people are more susceptible to other infections and illnesses because HIV attacks their immune cells. Thus, the correct option is B.
The methods of HIV transmission include infected blood transfusion, delivery of infected mother's milk to their infants, sharing infected needles, etc.
HIV virus attacks the immune cells of the affected individual and hence this makes an organism more susceptible to other infections and illnesses due to a decline in the effectiveness of immunity.
Therefore, the correct option for this question is B.
To learn more about HIV infection, refer to the link:
https://brainly.com/question/1686219
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