Some themes you might consider in the play include:
Greed
Power and ambition
What it means to be masculine and feminine
Trying to persuade
Idealism
What it means to be a (good/bad) leader
The importance of omens
The difference between villains and heroes
I agree with ur answer....under the surface...because of the context " drilled into the ground "
The answer is "B. bird:nest"
<span>An adverbial clause is a dependent clause that functions as an adverb; that is, the entire clause modifies a verb, an adjective, or another adverb. As with all clauses, it contains a subject and predicate, although the subject as well as the (predicate) verb may sometimes be omitted and implied </span>
Perhaps the poet uses a similar storyline with the purpose of conveying a different theme than the reader may have heard before.