I would say D for this one mostly because I know for sure most of these answers are right.
 
        
             
        
        
        
1. eating healthy foods.
2. getting enough sleep.
3. getting enough exercise
4. managing stress
5. washing your hands consistently.
All of those things helps your immune system by strengthening it or by keeping germs away which intern helps prevent you from getting sick.
I hope this helps.  Let know if anything is unclear.
        
             
        
        
        
C. Aorta
<h2>#CarryOnLearning</h2>
 
        
                    
             
        
        
        
Answer:
T
Explanation:
Its true because they are the most common.
 
        
                    
             
        
        
        
Answer:
Isnt it because its an open cut and it has something to do with the material?
Explanation: