The answer is D, religion was very important to them.
The resolution of the Supreme Court Case of West Virginia State Board of Education v. Barnette was a landmark decision reached by the court, which stated that the right of freedom of speech provided by the First Amendment legimated students to refuse to salute the US flag or to spout the The Pledge of Allegiance of the flag if they attended a public school. It is therefore not mandatory, and more important, not considered a criminal offence to refuse to perform publicly patriotic demonstration acts.
The court victory was achieved by the Jehovah's Witnesses who, due to the prescriptions of their religion, could not salute or pledge to symbols. The Supreme Court ruling decided that the state should not have the power to oblige citizens to express themselves in a certain manner. Therefore, it is a clear defense to the right of speech, and it proves how the legal and judicial instruments guarantee it for citizens.
The constitutional issue of freedom of the press was debated constantly after the release of the Pentagon Papers. The Pentagon Papers were a series of top secret documents that were only supposed to be seen by members of the federal government. However, these documents were leaked to the New York Times and Washington Post thanks to Daniel Ellsberg.
These papers showed that the American government had been lying to the citizens about the progress being made in the Vietnam War. These documents were supposed to be classified, however these newspapers published them in their newspapers anyways. This resulted in the battle between freedom of the press and the ability of the government to keep documents classified from the American public.
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It was very true that Missouri was admitted as a slave state