Fact 1: Immunodeficiency occurs when the immune system is not working properly.

Fact 2: Merchandise didn t work, or was broken.

Given the two facts above, answer the question "Immunodeficiency occurs when the immune system is what?" with the following options: 
- strong and healthy
 - expelled
 - infected
 - decreases
 - working great
 - broken
 - dangerous
 - easygoing


 

      broken   