I believe it’s “People should not fear space weather because violent events are rare and space is vast” because the paragraph wants to convince you that space weather shouldn’t be one of things you should be worrying about.
        
             
        
        
        
A. Purpose
You have to know what and why you are writing before you can make a plan to write.
        
                    
             
        
        
        
A claim is the main argument. Evidence is the facts or research to support your claim. I hope you win your next argument! :D