"A horse, a horse, my kingdom for a horse!" This line is an example of meter from Shakespeare's play, Richard the Third. There is a rhythm to this language when spoken. It is written in perfect iambic pentameter because it has five iambs.
Stream of consciousness which came much later than the Romantic writers and artists.
The Second one has to be B. It cannot be the last 2. We as a species have failed to live up to the Romantic ideal. He is lecturing all people, not writing for them. He is disappointed in man's behavior.
I'm sorry I don't know the answer to the third one. My guess would be allusion. He is referring to Greek gods.
I would need to see the examples