It increased the demand for slave labor to grow cotton.
I just had this question today =D! The answer is A. The port of Boston was closed.
Answer:
<h2>Particular achievements.</h2>
Explanation:
Classical or classic in those context refers to brilliant and unique eras, like top quality. So, basically, you can define classical as something special, or in this case special historic eras, because during those periods something was outstanding.