The answer for you will be 4. They slowed down their work production or did not work. I explained down below if you need it. Good luck :)
"during the Civil War, in 1861, the Federal Government started the Income Tax which placed a greater burden on the earnings of all families. The Northerners did better financially than did the Southerners because it had industry to fall back on for money. But in the South there was great suffering. Slaves who were on the plantations during the war did their best to make things harder for their masters. They worked slower and gave less of themselves than they did before the war. Some simply refused to work, for which they were surely punished."
