Which of the following is a condition that involves a deficiency in number, function, or interrelationships of the involved white blood cells and their products?

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Immunodeficiency refers to a lack of function or numbers of white blood cells and their products (such as antibodies), making the individual more susceptible to infections and diseases. Autoimmune diseases, like lupus or rheumatoid arthritis, involve the immune system attacking the body's own tissues. Leukocytosis is an increase in the number of white blood cells, which can be a response to infection or inflammation. Anaphylaxis is a severe allergic reaction that can cause symptoms like difficulty breathing or a drop in blood pressure.

Which of the Following Is a Condition That Involves a Deficiency