Answer:
D) The client's immune system became further weakened
Explanation:
HIV is the acronym for the human immunodeficiency virus that causes AIDS, a chronic disease that promotes the weakening of the body's immune system. Due to the damaged immune system, the individual infected with HIV can contract opportunistic diseases that will weaken their immune system even further, leading to death. For this reason, we can say that the client, exposed in the question, was probably sick due to resident microorganisms because the client's immune system was further weakened.