The correct answer for the given statement above would be option A. She will have been. The pronoun "she" is in the singular, third person. Other pronouns that are singular, third person include he, and it. And "will have been" is the conjugation of the verb "to be" in the future perfect tense. 
        
             
        
        
        
Much of the fear addressed in "The Fall of the House of Usher" is related to decay and death. As the narrator arrives, he contrasts the long-standing, enduring trees with the decayed aspect of the house. Usher appears extremely pale, and the impending death of Madeline dominates the atmosphere in the house and has caused Roderick to lose his mind. The cataleptic condition of Madeline also brings with it repeated death-like experiences, and the fear of a premature burial, another of Poe's topics. 
You can follow this trend of thought and illustrate it with those elements and passages in the story that relate to this decay, with its accompanying gloom, and with all those that refer to death and to untimely entombment.
 
        
             
        
        
        
Answer:
1956 was in the 20th Century CE
 
        
             
        
        
        
Answer: B
Explanation:
I don't know much about gerunds and I'm not very good at explaining but a gerund is a form that is derived from a verb but it functions as a noun.