First you need to know what a sentence fragment is and also what a complete subject and predict is. That should help you.
The term mimetic is associated with "imitation" so it might be said that during the 1800, literature tried to replicate or portray real life in the stories. that is to say, novels were based on realism so they were considered unique and a revelation because it was a new way of writing.
Sentence 1 because it speaks positively about robert king
Adverbs describes what the verb is doing