I would go with although both elephants,Asian and African elephants ate different in size ,genetics and habitat
        
                    
             
        
        
        
The answer is B. expert authors, the websites you get information from need 
to be afficial and have credibility.
hope this helps
        
                    
             
        
        
        
A metaphor is a piece of figurative language that compares two unlike things without using the terms "like" or "as". Off the bat, you can eliminate B and C, because they include these words. Option A is a piece of prose, it makes no comparisons.
The answer is D, because it compares the subject, "I" (most likely a person), to a rock (which is not a person).