"<span>C. The Roman army was strong, but was still unable to defend Rome from the Visigoths"</span> correctly describes events that led to the fall of Rome, although there were internal issues as well.
It was most directly related to democracys crops
President Johnson was speaking to how black citizens are equal to everyone else and should have the same rights as everyone else. He wanted them to have the right to vote and to have a voice. They were not the ones causing trouble. They just wanted to be treated fairly. It was the people and the old outdated laws they followed that caused the inequality issues.
If you are talking about the first air pollution problem its is A, almost about 100 years ago.
1955
The Founders made the amendment process difficult because they wanted to lock in the political deals that made ratification of the Constitution possible. Moreover, they recognized that, for a government to function well, the ground rules should be stable.