Which of the following statements is true based on the material?

• A. HIV is a bacterial infection.
• B. AIDS is the early stage of HIV.
• C. HIV is an STD that attacks and weakens the immune system.
• D. AIDS cannot occur after HIV infection.

Answer: (C)

HIV is a virus that attacks the immune system, weakening the body’s ability to fight infections. It’s transmitted mainly through sexual contact, which is why it’s described as an STD. If HIV isn’t treated, it can progress to AIDS, the advanced stage where the immune system is severely damaged. This makes the statement true: HIV is an STD that attacks and weakens the immune system. The other options are not correct because HIV is not a bacterial infection, AIDS is not the early stage of HIV, and AIDS can occur after HIV infection.