large farms or estates in warm climates where crops are grown by water who live

A. Anaconda Plan

Explanation:

The Anaconda Plan was a plan created at the beginning of the American Civil War by General Winfield Scott. The Plan aimed to create a naval blockade of the litoral of the Confederacy as a way to trust down the Mississippi and strangulate the South. The Mississippi was very important to the Confederacy because it was by the river that supplies would be shipped through the southern states.