The answer is not A) This happened after the climax.
The answer is not C) This is after the tragedy, or 'star crossed' event came into play.
I would say the answer is B, because this is when the misforture occurs.
You mean society as Era? or do you refer to the The Stevenson American society?
Douglass is implying that witnessing the celebration has shown him that the nation is even crueler than he thought.
Explanation: Fredrick Douglass explained that the hipocrisy of the country to celebrate freedom and rights while still owning slaves (and having him give a speech) makes the country much worse than he imagined.