Answer: The third option (option C) is the right answer.
Step-by-step explanation:
The paragraph which has the best coherence is option C. This is because in the case of the third option, it explains that the flow of ideas is constant from one sentence to another.
The first sentence serves as an introduction which talked about the reasons why duties should be divided based on each member’s expertise. The sentences moved smoothly and also logically from one sentence to another sentence. An example is the sentence that “if your company does not have a public relations executive…..”. This should logically proceed the sentence that says that communication ought to be overseen by the director of PR.
This shows that the third option possesses a consistent and logical train of thought as well.