Which was a precedent set by george washington in his first term as president

D. addressing the Chief Executive as " Your Highness"

Explanation:

it would be that mali has the worst literacy rate than the others

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.