The correct answer to this open question is the following.
Although there are no options attached, we can say the following.
The first test case for Reconstruction took place on Sea Island or Port Royal in South Carolina in 1861, where the Union Army tried to redistribute land to the freedmen.
We are talking about a moment in the history of the United States in 1861, when the Union Army invaded and capture Sea Island, in South Carolina. There they established a project called "Port Royal Experiment." The Union made this place a work center for former slaves that worked the farm fields that had been left behind by southern landlords. Historians think that 9000 to 10,000 black people stayed on the island when white people abandon it due to the Civil War.
Because you could just sit in your trench and wait for the opponent to attack, at which point you could shoot him, throw explosive devices, or even use chemical weapons that weren't banned then.
I believe the answer for your question is C
Answer: Primary Sources are immediate, first-hand accounts of a topic, from people who had a direct connection with it. Primary sources can include: Texts of laws and other original documents. Newspaper reports, by reporters who witnessed an event or who quote people who did.
Oversight and public education are examples of "implied" Congressional functions, since although they are not explicitly mentioned in the Constitution, they are included in Congress's wide-reach power to regulate interstate activity.
