Explanation:
is your headmaster young?
 
        
                    
             
        
        
        
Answer:
I think the answer is C 
Explanation: 
because the second sentence is give you information about the info in sentence one
 
        
             
        
        
        
the answer is D. Some of the world’s highest waterfalls can be found in three countries: Venezuela, South Africa, and Peru.
a colon in a sentence means the auther can end the sentence with a period if he wanted and the sentence would still be correct.
in this case the sentence could be, "Some of the world’s highest waterfalls can be found in three countries." 
this still looks and sounds correct and is a fully functioning sentence.
 
        
                    
             
        
        
        
The synonyms are different words with the same meaning so basically you have to know the meaning to identify the synonym ;)
        
                    
             
        
        
        
Inflate, overdo,overdraw,distort