Answer:
A random selection of 500 citizens to make up a jury
Explanation:
Made the Opinion poll .Opinion are usually made to represent the opinions of a population by conducting a muliple of questions and then extrapolating generalities in ratio or within confidence intervals.
D the south needed slaves to keep there economy competitive with other countries goods. They needed the slaves to keep the price down so they could sell more and make it cheaper than any other nation allowing it to grow and compete.
