It seems that the suitable answer is D) none. This is because these remain options don’t fit in the context of the sentence. First, contrary is someone who is always willing to argue or disagree with others. Second, transition and sustain aren’t correct ways to describe people. Both are used as adjectives for events or situations. Finally, in this context, it will be suitable to say that Peg is <em>superficial</em> among other adjectives that best fit in the sentence.
