In the 1800s, many white southerners followed the southern code

1. and as a result free african americans in the north were treated worse than enslaved african americans in the south.
2. because they owned large plantations where they cultivated cotton, which was a major cash crop in the south.
3. because enslaved workers did work that was not considered “ladylike” or “gentlemanly.”
4. and as a result most of them did not have enslaved workers and disagreed with the practice of slavery.

The correct answer is 3. In the 1800s, many white Southerners followed the Southern Code, because enslaved workers did work that was not considered "ladylike" or "gentlemany".

Explanation:

The Southern Code of honor was a set of prevailing social norms in the South of the United States in the 19th century, predominantly within the rural aristocracy of the area, whereby Southern whites carried out behaviors in a solemn and formal way. This code is one of the secondary reasons for the appearance of slavery in the south of the United States, since according to these norms it was frowned upon that the white man carried out manual labor that entailed physical effort. In this way, slavery started so that the white man maintained this social status introduced by the Southern Code.

a.

congress passed laws allowing for free passage between states.

opinion because one person might not like silk