The Southland, White Fang

Which sentence from the passage best supports the idea that white fang felt a sense of relief?

A. The log cabins he had known were replaced by towering buildings.

B. The car had been to him no more than a room in a house, and when he had entered it the city had been all around him.

C. As never before, he felt his dependence on the master, close at whose heels he followed, no matter what happened never losing sight of him.

D.Before him was smiling country, streaming with sunshine, lazy with quietude.