The Civil War was a battle at first to preserve the union but later ended being a war to end slavery. The Confederates were fighting to oppose those rights.
Answer: a. the behaviors of the person match our expectations from the get-go.
A stereotype is a widely held, oversimplified idea or opinion about a particular person or group of people.
In a self-fulfilling stereotype, the person of whom we have a preconceived notion behaves in a way that confirms our initial idea of him.