the answer is C, I legit just took the test not even 2 minutes ago
 
        
             
        
        
        
I believe the correct is the third option. It is important to preview sources before using them in your research because it reveals deeper concepts. Reading deeply the sources would allow you to have a deeper understanding of the sources and determine which parts of the sources are useful to your research.
        
             
        
        
        
Goal, whole, toll. That’s all I could think of that would actually be useful lol.
        
                    
             
        
        
        
He went to the woods because I wished to live deliberately, to front only the essential facts of life. While living in the woods, Thoreau desired to simplify his life.
hope this helps x