Respuesta :
Answer: D) Slavery was a hellish experience filled with brutal violence.
Explanation: In the given excerpt from Douglass' introduction to slavery, we can see the comparison between slavery and hell ("the blood-stained gate, the entrance to the hell of slavery"), by reading this comparison we can infer that Douglass' attitude towards slavery is that it is a hellish experience filled with brutal violence (the violence part is expressed with the phrase "the blood-stained gate").