Because organizational structures are structured toward one specific goal, the writer could be choosing one over another simply because one provides better resources for the goal to be attained. Another reason could be that the writer simply has a preference of what organizational structure they would like.
The answer is C ...
C.
It communicate the jargon of riverboat pilots.
Answer:
a sentence stating the claim or main point of your report
As the band marched across the field, the crowd cheered.
The answer to your question, is B.