MERCEDES BENZ 
Explanation:
MERCEDES BENZ IS THE POPULAR CHOICE 
 
        
             
        
        
        
A literary style popular during the Romantic era that emphasized the flawed nature of man and his potential for destruction rather than progress, often through monstrous heroes and/or sympathetic villains.
Gothic literature
 
        
                    
             
        
        
        
the sentence that contains the main idea is that "chocolate has been found to be a cause of weight gain." 
the paragraph is pointing out the fact that it has been <em>found </em>to cause weight gain but the paragraph goes on to say that some of the researchers don't dive deep enough. 
i hope that was helpful :D
 
        
                    
             
        
        
        
Answer:
what exactly is this question.