Your answer will be C,since its was pretty much meaning a slave wasn't a citizen,but indeed,property of the owner. Sad.
It is specifically focused on an argument which defines your goal and the scope of the thesis. Its main purpose is to support and prove your main argument. It's like a person arguing to prove his position which means he is making a claim. If written effectively, a claim statement will keep your readers interested.
The term data is used to refer to raw facts and figures.