President Lincoln’s suspension of the writ of habeas corpus meant that citizens

Habeas corpus is the legal protection requiring the government to bring a detained person before a court and explain why they are being held. Suspending it allowed people to be imprisoned without the usual prompt court review, so the best answer is “could be imprisoned illegally.” It did not directly remove freedom of speech, the right to bear arms, or protections against housing soldiers.

AI-written and checked against the verified answer.