You are presented with the question "What is available when the immune system is not working properly?" and the following answer choices: 
- treatment
 - fever
 - bacteria
 - intense drugs
 - Energy.
 - magic potions
 - the cure
 - Energy

Now knowing that immunodeficiency occurs when the immune system is not working properly and treatments are available for many immunodeficiencies, choose the best answer.


 

 treatment        