The Constitutional Convention is your answer.
30% were unemployed by the start of 1933.
Nobody else could build that canal. The Americans are the only people who could build them. They also made the Panama canal so that they could access the necessary territory.
<h2>"Expressed powers" or "enumerated powers."</h2>
Enumerated powers are those powers specifically granted to the federal government by the United States Constitution.
Enumerated powers include such things as the power to coin/print money, the power to establish and impose tariffs, and the power to regulated trade with foreign nations and trade/commerce between states.
Strict constructionists and loose constructionists differ over whether the government's powers should be limited to those specifically enumerated powers. Strict constructionists read the Constitution as giving the federal government only those specifically delegated powers. Loose constructionists argue that anything not specifically forbidden by the constitution can be within the window of what the government needs to do in adapting to the needs of time and circumstances.
I would also go with D.) Mutually assured destruction.
This whole idea mainly started during the Cold War. The United States and Soviet Union didn't want to use their nuclear weapons because they feared that if they did, the other side would retaliate. Ultimately, both sides would lose everything.