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because they wanted to launch the American state visit with a striking set of images</span>
NASA is an Independent Agency of the executive branch of the Federal Government of the United States.
Answer:
Option D, legitimacy, is the right answer
Explanation:
The supreme law of the U.S. is the Constitution of the United States. The Constitution describes the form of government for the United States. In short, the constitution is the main governing document of the United States. It is the source for the government as well as to the people of the nation. Moreover, the Constitution also serves to promote the concept of legitimacy.
A main reason that the age of revolutions initially failed to achieve widespread change in some nations of Europe was because many of these failed revolutions took place in the "backyards" of their mother countries--meaning that they were easily taken down with military power.