How did the slave codes affect enslaved people?
a. the slave codes turned enslaved people into indentured servants.
b. the slave codes protected enslaved people from slave owners.
c. the slave codes kept enslaved people frightened and powerless.
d. the slave codes kept enslaved people safe and comfortable.

Slave Codes were horrible, horrible laws.
Basically Slave Codes defined where a Slave was on the social scale. The very bottom. Slave Codes allowed Slave owners to do horrible things to their slaves because according to Slave Codes, Slave owners could do whatever they wanted to the Slaves. Therefore C.) is the correct answer to your question.
A.) is incorrect because indentured servants were people who were made to work on farms for whomever had paid for them to come to the Colonies.
B.) is incorrect because Slave Codes didn't protect the Slaves at all.
D.) is incorrect because Slaves were not made comfortable with these codes.

Hope this helps! (: