How do global issues related to population and resources reflect changes over the past 50 years

(d) take jobs from american workers.

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.

because he is a great ruler