Q: What happens when when the immune system does not work properly?


Read this paragraph and choose the correct option from the provided answers:

Immunodeficiency occurs when the immune system is not working properly. As a result, it cannot fight off pathogens that a normal immune system would be able to resist. Most commonly, immunodeficiency diseases occur when T or B cells (or both) do not work as well as they should, or when your body doesn't produce enough antibodies.

 Choices:

- anemia

- diabetes

- stroke

- immunodeficiency


A:
immunodeficiency