I think the answer is D but it's been a while since I've done this.
        
             
        
        
        
B. Segregation. 
I have the same question and answered it and this is what it told me. I think it should be right. 
        
             
        
        
        
Samoset and Squanto both speak using the English language. 
        
             
        
        
        
Mutations can lead to changes in the structure of an encoded protein or to a decrease or complete loss in its expression. Because a change in the DNA sequence affects all copies of the encoded protein, mutations can be particularly damaging to a cell or organism.