Read this line from "What to the Slave Is the Fourth of July?"

Standing there, identified with the American bondman, making his wrongs mine, I do not hesitate to declare, with all my soul, that the character and conduct of this nation never looked blacker to me than on this Fourth of July.

What is Douglass implying in this text?

His presence at the celebration shows that he has forgotten the past.

By speaking at the celebration, he feels complicit with the atrocities of the nation.

Witnessing the celebration has shown him that the nation is even crueler than he thought.

His speech will cause the audience to re-evaluate the meaning of freedom.

I think it's a or c