Vampire Diaries, the Originals, Criminal Minds
The index of leading indicators is used to predict changes in business cycles. The correct option among all the options that are given in the question is the first option or option "a". It is basically used to predict the future of the upcoming economy. It can also be said that it does not always yield the perfect result.
Answer: The president manages all official contacts with foreign government. The president whether to recognize new nations and new governments, and negotiate treaties with other other nationsm which become binding on the United States when approved By two thirds of the senate