It's an example of allusion, because it alludes to the language in the Emancipation Proclamation.
I have gone
Present perfect tense is has/have + past participle (of the verb)
The correct answer for the question that is being presented above is this one: "C.) sequence of events." The sky darkened, and thick clouds rolled in. They covered the sky like a wool blanket, and a cool wind picked up. Soon sporadic flashes lit the sky and thunder cracked after each strike. Trees bent with the wind, and droplets of rain tapped on our roof. It wasn’t long before those droplets turned into a torrential downpour.
The ability to remain positive. Simple:3