Answer:
-Rainsford did not smile. "I am still a beast at bay," he said, in a low, hoarse voice. "Get ready, General Zaroff."
Step-by-step explanation:
This is the sentence that best supports the idea that Rainsford is unchanged and still feels that the hunter is justified in killing the hunted. In these lines, Rainsford reflects on his condition as the prey being hunted. He reaches the conclusion that he is still "a beast at bay." He justifies his situation (being hunted) by referring to himself as a beast, thus showing that he believes beasts are meant to be killed.