The correct use of the introductory comma in the sentence is a clause.
        
                    
             
        
        
        
<span>Behr syndrome is a disorder mainly characterized by early-onset optic atrophy, ataxia, and spasticity. Other signs and symptoms may be present and vary from person to person.    Although the exact cause is unknown, the syndrome is believed to be genetic and inherited in an autosomal recessive fashion, in most cases. Autosomal dominant inheritance has been reported in one family.</span>
        
             
        
        
        
The answer is C) Personal nonfiction.
        
                    
             
        
        
        
Try to look at the brighter side. if you’re in a situation (for example) where you are waiting for test results, don’t think about the bad possibilities that could happen but more of what good could happen. try to keep an open mind and but don’t ignore the truth. 
stop looking back at your past!! you can’t do anything about it and you never will! it’s in the past for a reason. all you can do is keep living in the present and live your life.
it’s gonna take some time to care less about the world but eventually you’ll get there. you just have to understand how special you are and how most things that you are insecure or worried about don’t matter. you also have to let go of letting everything be perfect and your job IS NOT to please everyone except yourself. and try to find yourself and who you really are :)
        
             
        
        
        
I believe it's B because ethos mean looking at it from an ethical point of view, so facts I guess