Which of the following was an aspect slaves could NOT do according to slave codes?

The correct answer identifies a fundamental restriction imposed by slave codes, which were laws governing the practice of slavery in various states. Under these codes, enslaved individuals were not permitted to leave their owner's property without explicit permission. This was crucial in maintaining control over the enslaved population, as allowing slaves to roam freely could lead to escape or rebellion, thereby threatening the institution of slavery itself.

Leaving the owner's property was strictly regulated to ensure the enslaved remained subordinate and easily manageable. This control extended beyond just physical movement; it impacted their autonomy and ability to engage in any economic activities outside the immediate control of their owners.

While aspects like engaging in trade, working for wages, or owning livestock might vary based on location and specific laws, the absolute barrier against leaving the property was a common feature of slave codes across the southern states. Thus, recognizing the restrictions that were systematically applied to enslaved individuals helps illustrate the depth of oppression they faced within the institution of slavery.