Which of the following is not a concurrent power? the power to levy taxes the power to borrow money the power to sign treaties the power to maintain a court system done

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.