<span>Nominative case pronouns are pronouns that are generally used as the subject of the sentence. These pronouns are always the direct doer of the action (verb). Nominative case pronouns include I, you, he, she, they, it and we. The sentence that correctly uses a nominative case pronoun is: The boys were Max and I on the trampoline. The correct answer is option D.</span>
Answer:
Character motivation can affect a story's plot moving the plot forward and what's to come next in the story.
The subject here is simple" it's just "Antarctica" .
The verb is also not compound, it's a simple verb: "has".
The compound part of the sentence is the object: it is: "a thick ice cover and the highest average elevation of all the continents"
so the correct answer is "compound subject"