Answer:
Mitochondrial DNA is the DNA located in mitochondria, cellular organelles within eukaryotic cells that convert chemical energy from food into a form that cells can use, adenosine triphosphate.
Explanation:
 
        
             
        
        
        
The last option is the most accurate
Hope this helps!
        
                    
             
        
        
        
Th molecules in gas move around without pattern, they aren't stationary like in a solid or patterned like in a liquid.