Which body conducted the conspirators' trials?

• A. Civilian court.
• B. A U.S. grand jury.
• C. A U.S. military tribunal.
• D. An international tribunal.

Answer: (C)

The key idea here is who had the authority to try the conspirators after Lincoln’s assassination. A U.S. military tribunal conducted their trials, not a civilian court. In this wartime context, the executive branch authorized a military commission to handle cases involving high treason and national security, allowing quicker, specialized proceedings. Civilian courts would follow standard due process and slower procedures, which wasn’t deemed suitable for this extraordinary situation. A grand jury isn’t the trial body; it determines whether to issue charges. An international tribunal isn’t relevant here, since this involved actions within the United States and national sovereignty, not disputes between nations. The military tribunal was chosen precisely because it could address the gravity and urgency of the case under military authority, leading to the convictions and sentences that followed.