How was information about the war controlled by the federal government during World War 1?

O 90% of journalists were jailed because they were disseminating the truth about the war
O digital monitoring ensured no more attacks took place during the war
O the US ended all Chinese immigration to protect the public from disinformation
O censorship & the extensive use of propaganda was used to influence the public & protect the war effort
O laws were passed that forbid the speaking of German in any part of the US