It is A cause <span>Rosa Parks sparked the event. She was ordered to sit in the back of the bus, but she refused and sat in the front. She was arrested and after that African-Americans refused to take buses. Hoped I helped ;)</span>
A) Rosa Parks actions sparked the Montgomery bus boycott. She was forced to move to the back of the bus to give her seat up for a white woman, but refused to. During this time period in the South, African Americans were supposed to sit in the back of the bus, and could only sit in the front of the bus if no Whites were on the bus at the same time.
In the case Schenck v. the United States the US Supreme Court ruled that it is acceptable for the government restricts information released by the press when the information is posted as a clear and present danger and may threaten national security for example.