Which of the Following Is an Example of a "Diplomatic

Which of the following is an example of a "diplomatic solution"?

A) The International Monetary Fund lends money to Greece.
B) Secretary of State John Kerry engages in talks with Russia to find a solution to the threat of Iranian nuclear weapons development.
C) The United States takes action to disable terrorists groups and rogue states before they could do harm on the United States.
D) The United States sends medical aid,food relief,and rescue teams to Haiti after the latter is struck by an earthquake.
E) The United States engages in a trade treaty with Canada and Mexico to lower and eliminate tariffs among the three countries.