A theme (also known as a motif) is the main driving idea behind a poem. A theme or motif is not a summary of the poem, or a detail from the poem, but rather the emotion or motivation behind the poem. The theme might be "unrequited love" or "the power of traditions," but it wouldn't be "putting up walls between property lines," or anything else that specific.
Answer: B is your answer.. I know it can never be the last two.
White Fang came in until he touched Gray Beaver's knee
At the sound, Kiche leaped snarling to the end of her stick, and there raged terribly because she could not come to his aid. But Gray Beaver laughed loudly
Both nose and tongue had been scorched by the live thing, sun-colored, that had grown up under Gray Beaver's hands