Answer:
B a theme is the topic of the text
The correct answer is B. Employee is single. Employees is plural. Since you are talking about backgrounds that belong to more than one, you place the apostrophe after the S.
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. :)
