It is A, concrete detail, because it is the true that Dora the Explorer is on Nickelodeon. There is concrete evidence.
Brutus goes against Caesar because he fears that Caesar will get too powerful if he becomes king. He felt that if Caesar died rome would be saved.
One the omens that Calphurnia mentions in scene 2 is her dreams. Her nightmares foreshadowed Caesars death. She dreamt of Caesar getting murdered.
I think based on the extract the answer would be C because it shows how hard the poet must work?
I dont know this but it maybe added a prepositional phrase