Answer: Driving the French out of East Texas.
It made an agricultural industry in the south possible.
For those owning plantations, it made great wealth possible.
It set up a class system.
Even people with small farms seemed to have been able to afford 1 slave, so the south had economic reasons for engaging in the civil war. There were 69000 farms in the south when the war broke out. Each had at least 1 slave so they were very dependent on that labor.
The answer would be D, ruled by a small group.
The answer is C.) Executed rivals and imprisoned dissenters.