The right answer is C (Hail, king, for so thou art: behold, where stands/The usurper's cursed head:)
Assuming the italicized clause is <em>Since its establishment, </em>the correct answer here is elliptical clause.
Elliptical means that a word which would normally be part of a sentence is excluded, usually for stylistic reasons. Here, the verb is missing, which is why it is elliptical. The question is oddly formulated too - given that there is no verb here, it cannot be a clause, but rather a phrase, but since there is no such option here, then the correct answer is elliptical clause.
It influences a lot because, as the story is evolving so is the setting.
It matters because, without setting there's no story.
I believe that setting is the most important part of a story because, it tells u many things..
For Example :
TIME /PLACE /BACKGROUND OF STORY /AND WHERE SOMETHING TAKES PLACE..
in the house, park, pools, hotels, movies, Etc....
Answer:
e d g e n u i t. appears in the conclusion