Answer:
Completed is a verb.
- <em>A verb is a action, completing something is a action.</em>
<em>I hope this helped at all.</em>
 
        
                    
             
        
        
        
I think the questions that must be ask are: 
a.What does “encryption” mean?
d.What are “key distribution problems”?
All the text is based on the concept "encryption" so it is very important to know what it means in order to undestand the rest of the information. If not, you will be missing important facts. In addition, there are a lot of words used that are derived from this one, so you won't be able to undestand them. 
Another important concept that gives a lot of information just by knowing it's meaning is "key distribution problems", they could be two or a thousand, it is  important to know what they are and what they do. 
The other question that seems important is the one of the "public key cryphtography" but this one can be inferred by the context. 
 
        
                    
             
        
        
        
Answer:
PASSIVE: I hate being called early in the morning
Explanation:
 
        
                    
             
        
        
        
Answer:
Supporting evidence, A claim stated as a topic sentence, A concluding statement.
Explanation:
I believe this is correct. Remember to do a counterclaim as that is very important.
 
        
             
        
        
        
It look like c but it could be B do they ask for Shortened phrases?