The answer is movement...
A. Your grandparents’ house/ theirs
Answer: Because
Explanation: Because is the only word that fits here and is gramatically correct in the first place, neverminding the fact that it says "Best Completes" <em>Because</em> is the only word that is gramatically correct in this situation.
B. first person. this allows you the see what and character is thinking and feeling
Well, you should be more specific as to what essay it is, in allusion <span>there are </span>issues which an author may not want to address directly<span>. The author may (for various reasons) </span>want<span> to be unclear. By addressing issues via an allusion, the author shifts the responsibility for interpreting his thoughts to the reader.</span>