I think its a predicate hope it helps
The words in the sentence that make up the adjective phrase are from space. They modify aliens. Therefore D. is the correct answer.
Person who is opposed to, struggles against, or competes with another; opponent; adversary. the adversary of the hero or protagonist of a drama or other literary work: Iago isthe antagonist of Othello.
The line from the excerpt from Antigone that reflect her helplessness with regard to her fate and her family's past would be :
O monstrous doom,
within a rock built prison sepulchered,
to fade and wither in a living tomb
and alien midst the living and the dead
hope this helps
