D. Can't be properly divided. :D
If the question is in plural :
¿Qué escuchan ustedes?
The answer have to be in plural too:
Nosotros escuchamos música.
Subsequental, chronicle, anecdote, saga, legend.
Your answer will be C) Workplace cliques can cause horizontal disharmony (just like how cliques would form in say a high school!)
We can eliminate the others because A. Office friendships would actually lead to more socializing, B. Ethnic similarities are usually not a big factor in choosing to socialize or be friends with a person, and D) This is not impossible, just usually not encouraged
D. Hat, a direct object is an object/ thing that is being used in a sentence a certain way. " I left my keys in the house" Keys is the direct object