Answer:
b
Explanation:
All best answers are necessarily meant to be correct other wise there is no point of calling it a best answer. Along with being correct some essential features which could make an answer best answer include the following:    
1. A clear and step by step explanation of devising the correct answer.  
2. Any alternative solution or alternative method that may be quick or short reach the required answer.
 
        
             
        
        
        
Answer:
I think sentence no 4 will be the best answer 
hope you like the answer.........
 
        
             
        
        
        
Answer:
The author may use words in detail that show personality feeling,and thought.
Explanation:
The author may use this-
Ava was always competitive and persistent in what she was doing.
This sentence can help you make an inference on how you think Ava acts just by reading this sentence.
 
        
                    
             
        
        
        
Answer:
I'd say ask the person who assigned it to you.
Explanation:
hope this helps