You are presented with the question "What can infect and destroy helper T cells?" and the following answer choices: 
- Q cells
 - Cooking
 - bacteria
 - red blood cells
 - a-a gradients
 - parasites
 - viruses
 - cigarettes

Now knowing that hIV infects and destroys helper T cells and lets Meet the HIV HIV is a new virus, choose the best answer.


 

       viruses  