The answer is C. Commercial policy
Answer:
The Marshall Plan
Explanation:
Containment was an American government Doctrine which looked to contain the spread of Soviet influence and communist values all over the world.
As part of the global cold war, both the US and the Soviet tried to influence not only the hearts and minds of people but even sought to wage proxy wars and topple governments.
However, the most effective containment method was the Marshall Plan. An American loan to almost every European country in the Post-World War II era.
Europe was devastated by war and the loans helped to rebuild the country and turn it into an economic powerhouse. this not only opened a huge export market for the US but also created long-lasting friendly relations which culminated into the NATO alliance.
First telephone: Alexander Graham Bell, Antonio Meucci, Amos Dolbear.
First atomic reader: Robert Oppenheimer.
who made theory that made atomic power possible: Einstein.
First labor union: Samuel Gompers.
Father of the hydrogen bomb: Edward Teller.
<span>Some countries want to build a "canal" as a shortcut through Central America, since it was clear that moving around such a large body of land was time-consuming and expensive. </span>