Answer:
Option B, The author used details about events such as the Olympic Games's chariot race.
Explanation:
Detail in Option B reflect the historical setting of the text. 
It is so because Chariot race in Olympic games used to happen some where around  684 BC when horses were included in the Olympics. This event happened in past and hence it is a historical event. 
Thus, describing about Olympics chariot race represent the historical setting. 
 
        
             
        
        
        
Answer:
Start your letter with “Dear” followed by your teacher's name. This is a polite form of greeting known as a salutation. Include the title you use for your teachers, such as Mr., Mrs., Miss, Ms., or Coach. Use the name your teacher prefers.
Explanation:
 
        
                    
             
        
        
        
D) However, once the basics are learned, both are fun ways to enjoy the ocean.