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.
Hey there,
Your question states: <span>What role did "long held hatreds of neighbors have in the witch-hunt?"
His role was to send messages to other people. I believe that is how it went.
Hope this helps</span>
By giving the setting at the beginning of a story, it gives the reader an idea of what the plot will look like. If the setting of a story is in a haunted mansion on Halloween night, the reader has an idea that the plot will probably involve ghosts, chasing, capture, etc. Basically any Scooby-Doo movie ever. All in all, the setting gives the reader an idea of how the plot will lay out.