I think the dominant irony presented in the passage would be :
The Houyhnhnms. the most rational beings on earth, are discussing the extermination of an entire group of creatures.
You can see that in this sentence, the second part of the statement contradict the statement on the first part.
Answer: A C D E
Explanation:THIS IS THR RIGHT ANSWER JUST TOOK TEST
Just get over it you are there for your job focus on yourself and what you're doing because at the end of the day they would be doing their own thing.
The second one about Rosa parks