Which central idea is expressed in the excerpt

How does gregor change from the beginning to the end of the story?

Read the passage from an argumentative essay. many endangered species are currently threatened by climate change. there are some laws already in place, but are they effective enough? anyone with a conscience knows that these creatures deserve the chance to survive without outside threats impeding their survival. i suppose this is a tough decision for lawmakers, but i hope they choose wisely. which statement best evaluates the claim in the passage?

Why did the author include the fact that 40,000 african americans participated in the bus boycott