Reagan Doctrine was a strategy and was enforced by the U.S under the Reagan Administration to crush world wide influence of the Soviet Union.
So I believe it would be A. a program to oppose communism in all circumstances
Hope this helps you!
The first major labor union was founded in 1866 by William Sylvis. It was called the National Labor Union (NLU).
It was the first national federation in the United States but it did not last. It dissolved in 1873. However, it paved the way for other labor unions and organizations.
The open door policy was designed to open Japan to American trade and influence (The US was hungry for an imperial puppet).
Answer: Marco Polo
Explanation: Marco Polo (1254-1324) was a Venetian merchant at the height of the Mongolian Empire, believed to have traveled through Asia. He set out with his father and uncle at age 17 and traveled overland along what later became known as the Silk Road.
Here, that’s the answer for your question