I'm not sure what the lesson is, but the answer that makes sense the most is number. Number because most lessons in subject-verb agreement concerns the singularity and plurality of the subject at hand
Answer:
Katniss puts her family first, which means she cares about them more than herself, since she volunteered for the Hunger Games for her sister wouldn't go.
She's also very resourceful, and uses her environment to help her survive
Katniss is also respectful to those who give her respect first.
Answer: D is the answer.
Explanation: Cause and Effects Citations are when one is to look for a solution to a problem, most often, and D (last option) is the only option that does so and spells it out.
He planted many apple trees