Part A: D. 
Meaning of allusion:allusion refers to something that is in both reality and fiction. for example, a book mentions Mona Lisa. it is an allusion because it's referring to something that is in reality in a book.
Part B: A
        
                    
             
        
        
        
Answer:
"Do what you can with all you have, wherever you are." -- Theodore Roosevelt. "Being happy doesn't mean you're perfect. It just means you've decided to look beyond the imperfections." -- K.B. Indiana.
Explanation:
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10.Charming, she always knew how to put her guests at ease.
(functions as a direct object)
answer Infinitive,verb