assage:
Two U.S. allies are engaged in a heated dispute over trade.
The president of the United States orders the secretary of
state to organize a meeting between these countries'
leaders. The secretary convinces both leaders to meet and
discuss their disagreements. She also proposes a solution
to the trade dispute that both countries are willing to
accept.
The use of which foreign policy tool is described in the passage?
A. Humanitarian aid
B. Sanctions
C. Diplomacy
D. Military intervention