'Plain english' is a writing style that gets straight to the point, clear, and straightfoward , common in goverment or business and communications.
        
             
        
        
        
Answer:
B
.The historical documents about the invention of fireworks have been lost.
 
        
             
        
        
        
Answer:
B. The first paragraph discusses the idea that Americans are united as one despite their differences. The second paragraph discusses the idea that acts of intolerance make it difficult to believe that Americans are united as one.