Will someone help me with this? Please and thank you. :)

as the person below or above me i agree   the tone of voice of the itnerview can very well influecne he or she to pick one more over that   the infleuncer would pick

answer is b.

  it is always the best policy to have good communication and good relations between individuals and, specially, between leaders of the countries. for this purpose, among others, there is a common place, the united nations, where the representants can present his and learn about the other country's policies.