The answer to your question is:
C. Were dirty, crowded, and unhealthy.
The correct answer to this open question is the following.
Unfortunately, you did not mention what crisis you are referring to.
Without that information, we do not know what you are talking about.
However, trying to help, we can assume you are talking about the Cold War crisis because it was the Soviet Union that coined that phrase after the Cold War years.
So if that is teh case, what would happen to the idea of peaceful co-existence as a result of this crisis was that the two world superpowers of that time -the Soviet Union and the United States- had to learn to live in relative coexistence and "peace," after so many years of competing in the arms race, the space race, and the spread-containment of Communism around the world.
These countries had to learn how to coexists, more for necessity, rather than conviction.
<span>The nation's largest railroad center was found in Chicago. Chicago is considered as the most important center of railroads in North America. Chicago has been the most significant interchange point of commercial transportation between the nation’s great railroads.</span>
The correct answer to this open question is the following.
Although the question is incomplete because it did not say what kind of debate, the place, the date, and the scene or the debate, we can say that when journalists report debates in the newspaper, they have to elaborate a specific description, chronologically, maybe, of the way congressmen debated.
A typical scene of debate includes Congressmen of the two parties discussing and even arguing their proposals, trying to defend their ideas in order to win the debate. Sometimes the debate gets heated and it becomes something personal, although that is not professional.
The English Middle Ages is a historical period that started in the V century and ended in the XVI century. Historically it begins with the departure of the Roman legions from Britain and the invasion of the Anglo-Saxons and ends with Henry VIII and the reform of the Scottish theologian, John Knox