Repetition: Waiting for the night to end/waiting for a friend/waiting for that morning light. "Waiting for" is being repeated.
Alliteration: The soft snow swirled in circles around the subway stairs. The "sss" sound is being repeated.
I'm not sure about the others, but I hope this helps. :)
The imagery in the sentence best conveys: C. The vivid reality of silence. Hope that helps
He is in college, he is black, he lives in Harlem
