Personally, I would choose C because you could talk about the first time cars came out, when they were first used on the roads, and maybe relate to other countries (some came before, others after!) and who invented it-some background info on the inventor of the first car, etc.
:)
It summarizes the main point of the essay and tells the reader why that essay is important and worth their time to read.
The constitutional principle that was the main focus of the north south conflicts that led to the civil war was the right to own property, since many people in the South felt that slaves were included in terms of "property" that could not be taken away.
Your answer would be soviet union hope this helped have a great day