B is more like a note for class than the others. So I say go with B.
It seems that the answer would be B.
Answer:
B mandarin
Explanation:
this is called mandarin because ones can speak the word that is more often different from the mother language eg; Punjab , Chinese
It is D, because if you saw a simple sentence that said, "They rule the earthly world of men together," you wouldn't know who "They" are. That is why it is dependent, because it is depending on the rest of the paragraph to do its part first. :D