Answer: For of all slaveholders with whom I have ever met, [ religious slaveholders are the worst." -
Explanation:
Slave narrative, refers to the account of the life, of a former slave, that's orally related or either written personally by the slave.
Therefore, the example of characteristic of a slave narrative from narrative of the life of Fredrick Douglass is "For of all slaveholders with whom I have ever met, [ religious slaveholders are the worst.". This account was given by a former slave which was Frederick Douglass.