A)    
Ethos and logos
Ethos refers to the credibility of the speaker and his
knowledge about the subject. In the example given, the speaker is Dr. William
Leu who has attained a reputation and can be considered an expert about the
organ, heart, as he has over 25 years of experience being a cardiologist.
Logos refers to the message’s logic and backed up with
evidences. In the example given, Dr. Leu has researched and has a conclusion
about the topic, that’s why his claim can be considered as sufficiently backed
up.
 
        
                    
             
        
        
        
Life is filled with many scary things in my life but sometimes you need  to make that as a good adventure.  Me and my mom was talking about the Catfish and it ended up being a big talk about it. I ended up writing a story about it and it is a popular story at school. I never ate catfish before so it was kind of  a good topic.
        
                    
             
        
        
        
Yield to the vehicle On the left
        
             
        
        
        
Or is a coordinating conjunction.
        
             
        
        
        
It’s A because they are tried of fighting not for them but for the people around the world