How could the final sentence be revised to present a stronger conclusion? even loyalty is no match for the urges buck feels to return to the wilderness. buck’s loyalty to thornton is the only thing that keeps him alive in the yukon. once forged, loyalty is a powerful opponent for even buck’s natural instincts. loyalty is the only force in nature that allows buck to deny the call of the wild.

Once forged, loyalty is a powerful opponent for even Buck’s natural instincts.

Explanation:

This is the sentence that best presents a strong conclusion. An effective conclusion needs to summarize the information that was presented in the previous paragraphs. Moreover, it should remind the reader of the main idea being discussed to make sure that this leaves a lasting impression on his mind. In this sentence, the author does so effectively, as he reminds the reader of the conflict that Buck experiences between loyalty and his natural instincts.

the answer is:

apprehensive.

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