The use of foreign policy tool that is described in the passage
D. Diplomacy
Explanation:
Diplomacy is the prime and the most often used foreign relations tool.
It ultimately boils down to dialogue between two or more parties with possibility of intervention by a third considered party that can mediate the discussion between them over some disagreement that can be reached to a conclusion mutually.
In the situation like the one given here it is the job of the mediator to make sure that both parties move a little and meet and resolve the conflict somewhere in the middle between them.
The First Europeans. The first Europeans to arrive in North America -- at least the first for whom there is solid evidence -- were Norse, traveling west from Greenland, where Erik the Red had founded a settlement around the year 985.
His steel empire produced the raw materials that built the physical infrastructure of the United States. He was a catalyst in America's participation in the Industrial Revolution, as he produced the steel to make machinery and transportation possible throughout the nation
