Man.... I know this, I learned it last year.... PRIMARY yeah its primary. A primary resource, isn't a website or anything, its something that is a reliable and definite source.
        
                    
             
        
        
        
I'd say b, but I feel this could be somewhat open to interpretation.
        
                    
             
        
        
        
Hello! I don’t think this is truly a question however I hope you have a good day!
        
                    
             
        
        
        
About 90% of all stars are in the main sequence including our very own sun. They are the stars that are going through nuclear fusion, turning hydrogen atoms into helium. 
        
             
        
        
        
A dramatic irony is usually found in a book like drama you know what is happening but the main character doesn't know