Answer:
a. A i think so its A part and maybe also b part 
 
        
             
        
        
        
Answer:
A.  It is a unfying day for americans.
Explanation:
Makes the most sense.
It does not look like the same question... kind of confused
 
        
             
        
        
        
I think it would be 
Communism 
        
             
        
        
        
There are only three articles in the English language.  One is definite, and two are indefinite.  "The" is a definite article, while "a" and "an" are indefinite articles.  To answer your question, you need to find the sentence that correctly uses "a" and "an".  "A" is used if the word following it begins with a consonant, while "an" is used if the word following it begins with a vowel.  Looking at the options provided in your particular problem, you can see that answer choice a is the only one that follows all of the above rules, making it the correct answer.
        
             
        
        
        
The correct answer to this open question is the following.
How to make this sentence concise? Like this.
"Ann Bradstreet will always be a great American writer and person."
One of the best recommendations when writing is to be clear, direct, and concise. Sometimes, less is more. If you as the writer can express a full idea just using the necessary words in simple language, more people will be able to understand your writings. 
Ann Bradstreet (1612-1672) is considered to be one of the most important writers in the early years of colonial America. She was a Puritan, a devoted religious woman who wrote about women's issues in those colonial times.