The correct answer to this open question is the following.
Although there are no options attached, we can say the following.
Stalin failed to act quickly on promises to help the U.S., according to the agreements reached during the Yalta Conference and later in the Potsdam Conference. However, the United States also failed to do things agreed upon during the conferences. Of course, both nations have their own sides of the story. The real thing was that these series of disagreements contributed to mistrust between the nations.
During the so-called Cold War years, the Soviet Union remained in control of Czechoslovakia, East Germany, Romania, Bulgaria, Poland, and Hungary. Stalin considered these countries as a buffer in case the western allies tried to invade the Soviet Union.
The Cold War years was a time in which the United States and teh Soviet Union competed in the arms race, the space race, and in spreading/contain Communism in the world. These generated so many conflicts and wars around the world.
<span>D. Baron Von Steuben
is your answer
he was the prussian veteran that trained American troops at Valley Forge
hope this helps</span>
I believe it’s the second option not so sure though. Good luck
Answer: B. A writing system
Explanation: The Sumerians are the first known world civilization, which emerged on the land of Mesopotamia. In addition to the Sumerians, there were other Mesopotamian civilizations after, but one of the most important inventions or achievements that had an impact on the development of later civilizations was the writing system. It can be said that this invention is of great importance in general. According to some archaeological finds, the oldest Sumerian writing system on clay tablets dates back to the 8,000 years BC. To write on clay tablets, a Sumerian cuneiform was used, originating from pictographs and some other symbols used to display trade goods. The cuneiform was created from the need for trade because it represented a system of writing using wedge-shaped symbols, which were simpler than image symbols.
